B2 Idiom 中性 9分钟阅读

a tough nut to crack

A difficult problem or person to deal with

15秒了解

  • Describes a difficult person or problem.
  • Like a nut with a very hard shell.
  • Requires patience, skill, or cleverness.
  • Common in everyday conversation.

意思

想象一下用你的双手去打开一个非常坚硬的坚果。这就是这种感觉!`一个难啃的硬骨头` 描述的是一个人或事物,它非常难以理解、处理或解决。它带有一种挑战的感觉,甚至可能有点沮丧,但也包含对复杂性的尊重。

关键例句

3 / 12
1

Texting a friend about a tricky negotiation

This client is proving to be `a tough nut to crack`, but I think we're making progress.

This client is proving to be a tough nut to crack, but I think we're making progress.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
2

Describing a challenging puzzle

That escape room's final puzzle was `a tough nut to crack`, we almost didn't make it out!

That escape room's final puzzle was a tough nut to crack, we almost didn't make it out!

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
3

Talking about a reserved colleague

He doesn't say much in meetings; he's `a tough nut to crack` when it comes to understanding his opinions.

He doesn't say much in meetings; he's a tough nut to crack when it comes to understanding his opinions.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
🌍

文化背景

This idiom taps into a universal human experience: the struggle against stubborn resistance. Its roots lie in our long history of relying on nature's bounty, where some foods, like certain nuts, were notoriously difficult to access. This literal challenge of breaking through a hard shell became a potent metaphor for overcoming any significant obstacle, whether a person's guarded nature or a complex problem. It reflects a cultural appreciation for resilience and clever problem-solving.

💡

Think 'Puzzle,' Not 'Problem'

When you use `a tough nut to crack`, think of a puzzle that needs solving or a code to be deciphered. It implies a challenge that requires intelligence or a unique approach, not just brute force or endurance.

⚠️

Don't Call People 'Nuts' Literally!

This is a common beginner mistake! While the phrase uses 'nut,' it's figurative. Calling someone a 'nut' outside of this idiom can be insulting, implying they are crazy. Stick to the full phrase `a tough nut to crack`.

15秒了解

  • Describes a difficult person or problem.
  • Like a nut with a very hard shell.
  • Requires patience, skill, or cleverness.
  • Common in everyday conversation.

What It Means

Ever felt stumped by a puzzle? Or met someone you just couldn't get a read on? That's when you'd say they're a tough nut to crack. It means a person or a problem is really hard to understand or solve. Think of it as a mental or emotional challenge. It's not just difficult; it's stubbornly difficult. You might even feel a bit of a playful challenge when you say it. It’s like saying, "Okay, this is going to take some effort!"

Origin Story

The image of a nut with a hard shell is ancient. Nuts have been a food source for millennia. Breaking them open often required tools or significant effort. Early forms of this idiom likely existed in folk wisdom. People knew some nuts were simply tougher than others. The phrase likely gained wider traction in the 19th century. It became a colorful way to describe stubbornness or difficulty. Think of old-timey folks talking about a particularly stubborn mule or a tricky legal case. They'd probably say it was like trying to crack a particularly hard walnut. It’s a simple, relatable metaphor from everyday life. It stuck because it’s so visual. We all understand the struggle of a hard shell.

How To Use It

Use this phrase when you encounter something or someone challenging. You can apply it to people. For example, a quiet colleague might be a tough nut to crack. You can also use it for problems. A complex coding bug could be a tough nut to crack. It fits when direct methods don't work. You need patience or a clever approach. It's versatile for many tricky situations. Don't be afraid to use it in conversation. It adds a bit of flair. Just make sure the context fits. It’s not for minor inconveniences. It's for genuine difficulty. You'll sound more natural using it. It shows you understand nuance. It’s a great way to express a challenge. It’s also a bit of a compliment to the difficulty. It acknowledges the effort required. You might say, "This project is proving to be quite a tough nut to crack."

Real-Life Examples

Imagine a detective interviewing a suspect who won't spill the beans. The detective might think, "This guy is a tough nut to crack." Or maybe you're trying to assemble IKEA furniture. The instructions are confusing. The parts don't fit easily. That furniture could be a tough nut to crack. A difficult boss who is hard to please? Definitely a tough nut to crack. Trying to get a refund from a notoriously difficult company? That process is a tough nut to crack. Even a complex video game level can be a tough nut to crack. It’s all about the challenge. It’s about the resistance you face. It makes everyday struggles more vivid. It’s relatable for most people. We've all faced something like this. It’s a shared human experience. It’s a great phrase for storytelling. It adds color to your descriptions. It makes your point clearly. It's also good for expressing mild exasperation. But with a hint of admiration for the difficulty. It’s not usually negative. It’s more descriptive of the challenge.

When To Use It

Use a tough nut to crack when you face a significant challenge. This applies to people who are hard to understand. Or perhaps they are unyielding or secretive. It also works for problems that are complex. Solving them requires deep thought or effort. Think about a difficult negotiation. The other party might be a tough nut to crack. Or a scientific research problem. It could be a tough nut to crack. Use it when you want to convey difficulty. But also imply a potential for success. It suggests that with the right approach, it *can* be solved. It’s not for impossible situations. It’s for those that are very hard. It’s a phrase that acknowledges effort. It’s suitable for informal and semi-formal chat. You might use it with friends. Or in a casual work meeting. It’s a good way to set expectations. It tells others what they’re up against. It’s a signal for a difficult task ahead. It’s a warning, but also an invitation. An invitation to try harder. Or to think differently. It’s quite encouraging in its own way.

When NOT To Use It

Avoid using a tough nut to crack for simple tasks. If you just misplaced your keys, that’s not a tough nut to crack. It’s just forgetfulness. Don't use it for things that are genuinely impossible. Like trying to fly without a plane. That's just physics! Also, steer clear of using it in very formal settings. Like a legal document or a scientific paper. It sounds too casual. It might not be understood by everyone. It's also not great for expressing genuine anger or despair. While it implies difficulty, it's usually said with a bit of a shrug. Or even a smile. If you're truly devastated by a problem, find stronger words. It's not for life-or-death situations. It's for challenges that test your wits. Or your patience. Think of it as a slightly playful description of difficulty. It’s not meant to sound overly dramatic. Or overly serious. It’s a bit of a folksy expression. So keep that in mind. It’s best used when there’s a hint of admiration. Or at least a grudging respect for the difficulty.

Common Mistakes

A common mistake is using it for easy things. Like, "My coffee order was a tough nut to crack because I wanted oat milk." No, that's just a specific request. Another error is applying it to something dangerous. "That bear was a tough nut to crack." Bears are dangerous, not difficult in this sense. It’s about intellectual or strategic difficulty. Not physical threat. Also, don't confuse it with being mean. Someone might be rude, but not necessarily a tough nut to crack. They might just be unpleasant. The phrase implies a puzzle to be solved. Not just a bad attitude. Remember, it's about overcoming a challenge. It's not about simply enduring something unpleasant. Or something scary. It's about the process of understanding or solving. It's a puzzle, not a monster. So, think puzzle, not peril. Think strategy, not just struggle. It's a subtle but important distinction. Getting this wrong can make you sound a bit silly. Or misinformed.

My homework was a tough nut to crack My homework was very difficult
That angry dog was a tough nut to crack That angry dog was dangerous
The exam was a tough nut to crack The exam was very challenging

Similar Expressions

There are many ways to say something is difficult. Some are more formal, others more casual. A hard row to hoe is similar. It means a difficult task or situation. A real challenge is a straightforward alternative. A thorny issue refers to a complex problem. A difficult pill to swallow is about accepting something unpleasant. A sticky wicket is more British English. It means a tricky situation. A tough cookie refers to a person who is resilient. They might also be hard to influence. A puzzle or a conundrum describe difficult problems. A daunting task highlights the intimidating nature. Each has its own flavor. A tough nut to crack often implies a need for cleverness. Or persistence. It’s not just hard; it’s *stubbornly* hard. It’s a nice idiom to have in your toolkit. It adds color to your speech. It makes you sound more fluent. It’s a sign of advanced vocabulary. It shows you understand idioms well.

Memory Trick

💡

Picture a literal nut. Maybe a walnut or a Brazil nut. It has a super thick, hard shell. You try to crack it with your hands. It's impossible! You need a nutcracker or a hammer. That's exactly what a tough nut to crack feels like. It's something that resists your initial efforts. It requires a special tool or method. Or just a lot more force. Think of the frustration. Think of the effort. Now imagine applying that to a person or a problem. That's the feeling. So, when you see a hard nut, remember the phrase. It’s a visual reminder. It helps you recall the meaning. The shell is the difficulty. Cracking it is solving the problem. Or understanding the person. It’s a strong, memorable image. It links directly to the meaning. It’s a classic metaphor. It works because it’s so universal. Everyone understands a hard shell. It’s a simple, effective trick. It makes the idiom stick. It’s like a little mental bookmark. You see the nut, you remember the phrase. Easy peasy, lemon squeezy. Wait, is lemon squeezy a tough nut to crack? Probably not!

Quick FAQ

  • What's the main idea? It’s about something or someone very hard to deal with.
  • Can it be used for people? Yes, people who are hard to understand or influence.
  • Is it always negative? Not necessarily; it often implies a challenge worth tackling.
  • Does it mean dangerous? No, it means difficult, not necessarily harmful.
  • Is it formal or informal? Mostly informal to neutral. Best avoided in very formal writing.
  • What's a synonym? A difficult problem or a challenging person.
  • Does it imply a solution exists? Often, yes. It suggests difficulty, not impossibility.
  • Can kids use it? Yes, it’s quite common and understandable.
  • What if I use it incorrectly? People might be confused about what you mean. You might sound a bit off. It’s better to be precise. Or use a clearer phrase if unsure. It's always good to check context. Does it fit the situation? Is the tone right? These are key questions. Make sure you’re not overstating. Or understating the difficulty. It's a balancing act. Like cracking that actual nut!

使用说明

This idiom is best used in informal to neutral contexts. While it can appear in semi-professional settings, avoid it in very formal writing or speeches. The key is that it describes something *stubbornly* difficult, implying a challenge that requires cleverness or persistence to overcome, rather than just simple difficulty or danger.

💡

Think 'Puzzle,' Not 'Problem'

When you use `a tough nut to crack`, think of a puzzle that needs solving or a code to be deciphered. It implies a challenge that requires intelligence or a unique approach, not just brute force or endurance.

⚠️

Don't Call People 'Nuts' Literally!

This is a common beginner mistake! While the phrase uses 'nut,' it's figurative. Calling someone a 'nut' outside of this idiom can be insulting, implying they are crazy. Stick to the full phrase `a tough nut to crack`.

🎯

Add a Hint of Respect

Often, using this phrase shows a grudging respect for the difficulty. You're acknowledging that it's not easy, and that's okay. It can soften the blow of saying something is hard.

💬

A Taste of Folk Wisdom

This idiom comes from everyday observation of nature. The effort needed to crack real nuts mirrors life's challenges. It reflects a time when people relied more directly on understanding the physical world.

例句

12
#1 Texting a friend about a tricky negotiation
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

This client is proving to be `a tough nut to crack`, but I think we're making progress.

This client is proving to be a tough nut to crack, but I think we're making progress.

Here, 'tough nut to crack' describes the client's difficult negotiating style.

#2 Describing a challenging puzzle
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

That escape room's final puzzle was `a tough nut to crack`, we almost didn't make it out!

That escape room's final puzzle was a tough nut to crack, we almost didn't make it out!

Highlights the extreme difficulty of the puzzle, requiring significant effort.

#3 Talking about a reserved colleague
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

He doesn't say much in meetings; he's `a tough nut to crack` when it comes to understanding his opinions.

He doesn't say much in meetings; he's a tough nut to crack when it comes to understanding his opinions.

Focuses on the difficulty of understanding the colleague's personality or thoughts.

#4 Instagram caption about a complex project
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

This coding project is definitely `a tough nut to crack`, but I'm loving the challenge! #codinglife #problemsolving

This coding project is definitely a tough nut to crack, but I'm loving the challenge! #codinglife #problemsolving

Used on social media to describe a difficult but engaging task.

#5 Job interview question
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Describe a time you faced a difficult challenge. Interviewer: "So, tell me about a time you encountered `a tough nut to crack` in a previous role."

So, tell me about a time you encountered a tough nut to crack in a previous role.

Used in a professional context to describe a significant work-related problem.

#6 Discussing a stubborn child
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

Getting him to eat his vegetables is `a tough nut to crack`!

Getting him to eat his vegetables is a tough nut to crack!

Expresses the difficulty and persistence required to achieve a simple goal.

#7 Common learner mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

✗ My neighbor is a tough nut to crack because he is loud. → ✓ My neighbor is annoying because he is loud.

My neighbor is annoying because he is loud.

This mistake confuses 'difficult to understand/solve' with simply 'unpleasant'.

#8 Another common learner mistake
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

✗ The weather was a tough nut to crack today. → ✓ The weather was terrible today.

The weather was terrible today.

The phrase is for problems or people, not simple states like weather.

#9 WhatsApp message to a friend
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Trying to figure out this new streaming app is `a tough nut to crack`. Any tips?

Trying to figure out this new streaming app is a tough nut to crack. Any tips?

Relatable modern scenario where technology can be confusing.

#10 Discussing a historical mystery

The Voynich Manuscript remains `a tough nut to crack` for cryptographers even today.

The Voynich Manuscript remains a tough nut to crack for cryptographers even today.

Highlights a long-standing, unsolved intellectual challenge.

#11 Talking about a complex recipe
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Making macarons from scratch? That's `a tough nut to crack`!

Making macarons from scratch? That's a tough nut to crack!

Emphasizes the skill and precision required for a notoriously difficult recipe.

#12 Professional context - difficult client
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

We need a creative strategy for this client; they're `a tough nut to crack`.

We need a creative strategy for this client; they're a tough nut to crack.

Used in a business meeting to signal the need for a special approach.

自我测试

Fill in the blank with the correct idiom.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

`A tough nut to crack` is used for someone or something difficult to deal with. The brother's refusal makes him difficult.

Find and fix the error in the sentence.

✓ 正确! ✗ 不太对。 正确答案:

The phrase `a tough nut to crack` means difficult. The sentence implies the update was easy because it improved the computer's speed. Using the idiom here creates a contradiction.

Choose the sentence that uses the idiom correctly.

Which sentence uses 'a tough nut to crack' correctly?

✓ 正确! ✗ 不太对。 正确答案: The mystery novel was `a tough nut to crack` until the final chapter.

The idiom refers to something difficult to understand or solve. A mystery novel fits this description perfectly until the solution is revealed.

Translate the idiom into a more literal English phrase.

✓ 正确! ✗ 不太对。 正确答案:

The idiom means someone is difficult to figure out or persuade, much like trying to break open a very hard shell.

Fill in the blank with the correct idiom.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

The phrase indicates a significant challenge that required effort to overcome, fitting the context of fixing an old record player.

Find and fix the error in the sentence.

✓ 正确! ✗ 不太对。 正确答案:

While complaining might make someone hard to deal with, `a tough nut to crack` implies a puzzle or a challenge to overcome, not just general unpleasantness or negativity.

Put the words in the correct order to form a sentence.

✓ 正确! ✗ 不太对。 正确答案:

The sentence structure requires the subject ('This problem') followed by the verb ('is') and then the idiom describing the subject.

Match the idiom with its closest meaning.

✓ 正确! ✗ 不太对。 正确答案:

`A tough nut to crack` specifically implies difficulty in understanding or solving, often requiring cleverness or persistence.

Translate the idiom into a more literal English phrase.

✓ 正确! ✗ 不太对。 正确答案:

The idiom suggests that the political situation presents a significant challenge that requires a strategic and possibly complex approach to understand and solve.

Choose the sentence that uses the idiom correctly.

Which sentence correctly uses `a tough nut to crack`?

✓ 正确! ✗ 不太对。 正确答案: My new boss is `a tough nut to crack`, very demanding.

The idiom applies to people who are difficult to understand or manage. A demanding boss fits this description.

Fill in the blank with the correct idiom.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

The phrase implies difficulty in understanding someone's motivations, suggesting a complex psychological puzzle that requires effort to solve.

Match the idiom with its closest meaning.

✓ 正确! ✗ 不太对。 正确答案:

`A tough nut to crack` shares the idea of difficulty with the other phrases but often carries a slightly more accessible, everyday feel compared to the more literary 'enigma' or historical 'Gordian knot'.

🎉 得分: /12

视觉学习工具

Formality Spectrum for 'A Tough Nut to Crack'

Very Informal

Used casually among close friends, often with a playful tone.

Dude, figuring out this game level is a tough nut to crack!

Informal/Neutral

Common in everyday conversations, work discussions, and texting.

This client is a tough nut to crack, but we'll get there.

Formal

Generally avoided in highly formal writing or speeches.

The investigation presented a tough nut to crack for the detectives.

Very Formal

Almost never appropriate in academic papers or official documents.

N/A

Where You'll Hear 'A Tough Nut to Crack'

Difficult Challenges
🧩

Solving a complex puzzle

That jigsaw puzzle was a tough nut to crack!

👤

Understanding a reserved person

He's a tough nut to crack, I can't read his expression.

🤝

Negotiating a difficult deal

This contract negotiation is proving to be a tough nut to crack.

💻

Debugging code

This bug is a tough nut to crack.

💪

Overcoming a challenging task

Learning this new skill is a tough nut to crack.

🕵️

Figuring out a mystery

The detective knew the suspect was a tough nut to crack.

Comparing 'A Tough Nut to Crack' with Similar Phrases

A Tough Nut to Crack
Meaning Difficult person or problem to understand/solve.
Vibe Challenging, requires effort/cleverness.
Example This math problem is a tough nut to crack.
A Hard Row to Hoe
Meaning A difficult task or situation to endure.
Vibe Struggling, laborious, ongoing difficulty.
Example Raising triplets is a hard row to hoe.
A Piece of Cake
Meaning Something very easy to do.
Vibe Effortless, simple, quick.
Example Fixing that typo was a piece of cake.

Usage Categories for 'A Tough Nut to Crack'

🧑‍🤝‍🧑

People

  • A secretive colleague
  • An uncooperative client
  • A stubborn child
  • A mysterious stranger

Problems

  • A complex math equation
  • A difficult legal case
  • An unsolved mystery
  • A challenging video game level
⚙️

  • Requires patience
  • Needs clever strategy
  • Demands persistence
  • Might need special tools/knowledge
⚖️

  • Informal conversations
  • Casual work chats
  • Friendly emails
  • Avoids very formal settings

练习题库

12 练习
Fill in the blank with the correct idiom. Fill Blank beginner

My little brother is refusing to clean his room, he's really ___.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

`A tough nut to crack` is used for someone or something difficult to deal with. The brother's refusal makes him difficult.

Find and fix the error in the sentence. Error Fix intermediate

找出并修正错误:

The new software update was a tough nut to crack, it made my computer faster.

✓ 正确! ✗ 不太对。 正确答案: The new software update was surprisingly easy, it made my computer faster.

The phrase `a tough nut to crack` means difficult. The sentence implies the update was easy because it improved the computer's speed. Using the idiom here creates a contradiction.

Choose the sentence that uses the idiom correctly. Choose beginner

Which sentence uses 'a tough nut to crack' correctly?

✓ 正确! ✗ 不太对。 正确答案: The mystery novel was `a tough nut to crack` until the final chapter.

The idiom refers to something difficult to understand or solve. A mystery novel fits this description perfectly until the solution is revealed.

Translate the idiom into a more literal English phrase. 翻译 intermediate

He's proving to be a tough nut to crack.

提示: Think about what 'tough' means here., What does 'crack' imply in this context?

✓ 正确! ✗ 不太对。 正确答案: He is proving to be very difficult to understand or influence.

The idiom means someone is difficult to figure out or persuade, much like trying to break open a very hard shell.

Fill in the blank with the correct idiom. Fill Blank intermediate

Getting the old record player to work again was ___ , but we finally managed it.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

The phrase indicates a significant challenge that required effort to overcome, fitting the context of fixing an old record player.

Find and fix the error in the sentence. Error Fix advanced

找出并修正错误:

He's a tough nut to crack, always complaining about everything.

✓ 正确! ✗ 不太对。 正确答案: He's difficult to deal with, always complaining about everything.

While complaining might make someone hard to deal with, `a tough nut to crack` implies a puzzle or a challenge to overcome, not just general unpleasantness or negativity.

Put the words in the correct order to form a sentence. Reorder beginner

将单词按正确顺序排列:

点击上方单词来构建句子

✓ 正确! ✗ 不太对。 正确答案: This problem is a tough nut to crack.

The sentence structure requires the subject ('This problem') followed by the verb ('is') and then the idiom describing the subject.

Match the idiom with its closest meaning. Match intermediate

将左侧的每个项目与右侧的配对匹配:

✓ 正确! ✗ 不太对。 正确答案:

`A tough nut to crack` specifically implies difficulty in understanding or solving, often requiring cleverness or persistence.

Translate the idiom into a more literal English phrase. 翻译 advanced

This political situation is a tough nut to crack.

提示: Consider the complexity and the need for resolution., What does 'crack' suggest about the desired outcome?

✓ 正确! ✗ 不太对。 正确答案: This political situation is a very complex and difficult issue to resolve.

The idiom suggests that the political situation presents a significant challenge that requires a strategic and possibly complex approach to understand and solve.

Choose the sentence that uses the idiom correctly. Choose intermediate

Which sentence correctly uses `a tough nut to crack`?

✓ 正确! ✗ 不太对。 正确答案: My new boss is `a tough nut to crack`, very demanding.

The idiom applies to people who are difficult to understand or manage. A demanding boss fits this description.

Fill in the blank with the correct idiom. Fill Blank advanced

Understanding the motivations behind his actions has always been ___.

✓ 正确! ✗ 不太对。 正确答案: a tough nut to crack

The phrase implies difficulty in understanding someone's motivations, suggesting a complex psychological puzzle that requires effort to solve.

Match the idiom with its closest meaning. Match advanced

将左侧的每个项目与右侧的配对匹配:

✓ 正确! ✗ 不太对。 正确答案:

`A tough nut to crack` shares the idea of difficulty with the other phrases but often carries a slightly more accessible, everyday feel compared to the more literary 'enigma' or historical 'Gordian knot'.

🎉 得分: /12

常见问题

20 个问题

It means someone or something is very difficult to understand, deal with, or solve. Think of a literal nut with a shell so hard you can't easily break it open. It implies a challenge that requires patience, cleverness, or a special approach to overcome.

Absolutely! It's very common to describe people this way. If someone is reserved, secretive, stubborn, or hard to get to know, they might be a tough nut to crack. It suggests you can't easily figure them out or influence them.

Yes, definitely. Any problem that is complex, challenging, or requires significant effort to solve can be described as a tough nut to crack. This could be a difficult math problem, a complex work project, or even a tricky legal case.

While both mean hard, a tough nut to crack adds a layer of nuance. It often implies a puzzle-like quality or a stubborn resistance that needs to be overcome, suggesting that with the right approach, a solution is possible, unlike a simply insurmountable difficulty.

Use it when you encounter a situation, person, or problem that presents a significant challenge. It’s great for expressing that something requires more than a superficial effort to understand or resolve. It fits well in casual conversations and even semi-formal work discussions.

You should avoid it in very formal contexts like academic papers or official legal documents, where it might sound too informal. Also, don't use it for things that are simply dangerous (like a wild animal) or impossible; it's meant for challenges that can potentially be overcome with effort or skill.

The formality level is generally neutral to informal. It's perfectly fine for everyday conversations with friends, family, or colleagues. However, in highly formal writing or speeches, you might opt for clearer, more direct language like 'a complex challenge' or 'a difficult issue'.

Sure! Imagine you're talking about a new colleague who rarely speaks in meetings and keeps their ideas private. You could say, 'He's really a tough nut to crack; I'm not sure what he thinks about the project.'

Certainly! If you're working on a complex computer program and find a persistent bug that's hard to fix, you might tell your teammate, 'This bug is a tough nut to crack; I've tried everything.'

Not typically. While it describes difficulty, it's usually said with a sense of challenge or even admiration for the complexity. It's rarely used to express strong anger or despair, more often a sense of 'this will take some work'.

A common mistake is using it for things that are simply unpleasant or dangerous, rather than difficult to understand or solve. For example, saying 'The angry dog was a tough nut to crack' is incorrect; it should be 'dangerous'. Also, confusing the idiom with calling someone 'a nut' (meaning crazy) is a potential pitfall.

Picture a literal nut, like a walnut or Brazil nut, with an extremely hard shell. Imagine trying to open it with just your fingers – it’s nearly impossible! That feeling of resistance and difficulty is exactly what the idiom conveys when applied to people or problems.

Not really any common, distinct variations. The phrase itself is quite standard. You might hear slight rephrasing like 'He's quite a tough nut' or 'That's a tough nut,' but the core idiom a tough nut to crack is the most recognized form.

The origin comes from the literal difficulty of cracking hard-shelled nuts for food. This physical challenge became a metaphor for any person or problem that resists easy understanding or solution, likely evolving from folk wisdom over centuries.

Yes, a tough nut to crack is used in both American and British English. It's a widely understood idiom across the English-speaking world, making it a safe choice for international communication.

If you use it for something easy, people will likely be confused or find it humorous. For instance, saying 'My morning coffee was a tough nut to crack' would sound odd. It might imply you're exaggerating or don't quite grasp the idiom's meaning.

Yes, it can be used in professional settings, but with caution. It's best suited for informal discussions with colleagues or in contexts where a slightly more colorful expression is acceptable. In very formal reports or client communications, more direct phrasing like 'a complex challenge' is safer.

It reflects a cultural value placed on problem-solving and understanding complexity. It acknowledges that some challenges are significant and require effort, perseverance, and perhaps ingenuity, mirroring a practical, results-oriented approach.

Yes, 'crack' refers to breaking through the hard exterior of the nut. In the idiom, it signifies overcoming the difficulty, understanding the person, or solving the problem. It implies successfully penetrating the resistance or complexity.

A common antonym would be 'a piece of cake,' which describes something very easy to do or understand. Other antonyms include 'a breeze,' 'easy peasy,' or 'simple as ABC,' all indicating a lack of difficulty.

相关表达

🔗

a hard row to hoe

related topic

A difficult task or situation to endure.

Both phrases describe difficult situations, but 'a hard row to hoe' emphasizes the labor and endurance required over a prolonged period.

↔️

a piece of cake

antonym

Something very easy to do.

This phrase is the direct opposite, signifying a task or person that presents no difficulty whatsoever, unlike 'a tough nut to crack'.

🔗

a puzzle

related topic

A game, toy, or problem designed to test ingenuity or knowledge.

Both 'a puzzle' and 'a tough nut to crack' imply something that requires thought and effort to solve or understand.

🔗

a tough cookie

related topic

A person who is strong, determined, and difficult to influence or defeat.

While both relate to toughness, 'a tough cookie' focuses on resilience and determination in a person, whereas 'a tough nut to crack' focuses on the difficulty of understanding or solving them.

🔄

a thorny issue

synonym

A complex problem that is difficult to deal with.

This phrase is a close synonym, specifically referring to problems that are complicated and potentially sensitive, much like a 'tough nut to crack' problem.

🔗

a real challenge

related topic

A task or situation that tests one's abilities.

This is a more general term for difficulty, but 'a tough nut to crack' adds a specific flavor of stubbornness or complexity to the challenge.

有帮助吗?
还没有评论。成为第一个分享想法的人!