A lifetime means all the time someone lives, from when they are born until they die. For example, a person's lifetime could be 80 years. It can also mean how long something works. Like, a machine might have a lifetime of 10 years, meaning it works well for that long. So, it's about the total time something or someone exists or functions.
A lifetime refers to the total duration someone or something exists. For a person, it's their entire life, from birth to death. For an object, like a machine, it's how long it functions properly before needing replacement or major repair. We often use it to talk about experiences or achievements that happen throughout someone's existence, like 'a lifetime of memories'. It emphasizes the complete span of time.
The noun lifetime refers to the duration of an individual's existence, from birth until death. It can also be applied to the operational period of an inanimate object or system, indicating how long it functions effectively or remains relevant. For instance, one might speak of the lifetime of a product, meaning the period it is expected to be useful. The concept often carries implications of experiences, achievements, or changes that occur within that span. In a broader sense, it can denote the entire period something endures.
The noun 'lifetime' fundamentally denotes the temporal span of existence, whether of an animate being or an inanimate entity. For individuals, it encapsulates the entirety of their lived experience from birth to demise, encompassing all personal development, societal interactions, and accumulated memories. In a broader sense, it can also quantify the operational longevity or utility period of an object, such as the expected functional duration of a machine or a product before obsolescence or failure. Thus, 'lifetime' serves as a comprehensive metric for duration, applicable across diverse ontological categories, highlighting either a biological continuum or a period of functional viability. The term can be employed both literally and figuratively to emphasize the enduring nature or limited temporal scope of various phenomena.
lifetime 30秒了解
- Duration of existence
- Period of functionality
- Total time alive
§ Understanding "Lifetime"
The word "lifetime" is a noun that refers to the entire period of time that something exists. Most commonly, it refers to the period a person is alive, from birth to death. However, it can also describe the duration of an object's functionality or existence, such as a machine or a product. Understanding this dual application is key to using it correctly.
- DEFINITION
- A lifetime is the entire period of time that a person is alive. It can also refer to the length of time that an object, like a machine, works correctly.
§ Using "Lifetime" for People
When talking about a person's life, "lifetime" emphasizes the entire span of their existence. It can be used to describe experiences, achievements, or situations that occur during this period.
She had many adventures in her lifetime.
He worked hard his entire lifetime.
§ Using "Lifetime" for Objects and Concepts
Beyond people, "lifetime" is also used to describe the duration of something's usefulness or existence. This is common when discussing products, machines, or even concepts.
The car has a lifetime warranty.
The battery's lifetime is about five years.
§ Common Phrases and Prepositions with "Lifetime"
"Lifetime" can be combined with various prepositions and adjectives to form useful phrases. Here are some common examples:
- In a lifetime: This phrase emphasizes an event or experience happening at some point within a person's life.
It was the best day of my life, a once in a lifetime opportunity.
- For a lifetime: This suggests something that will last for the entire duration of a person's or object's existence.
This memory will stay with me for a lifetime.
- During one's lifetime: Similar to "in a lifetime," this highlights events or periods within a person's life.
Many historical changes occurred during his lifetime.
§ "Lifetime" as an Adjective
While primarily a noun, "lifetime" can also function as an adjective, often preceding another noun to describe its duration.
He received a lifetime achievement award.
The product comes with a lifetime guarantee.
§ Where you actually hear this word
- Context
- You'll hear 'lifetime' in many different places, both formal and informal. It's a common word used to talk about the entire period of someone's life or how long something is expected to last.
§ At Work
In a professional setting, 'lifetime' might come up when discussing career paths, product warranties, or even the expected duration of a project. It helps to emphasize the long-term aspect of something.
The company offers a lifetime warranty on this appliance.
This is a once-in-a-lifetime opportunity for career growth.
§ At School
In an academic environment, 'lifetime' can be used in history lessons when talking about historical figures, in science when discussing the lifespan of organisms, or even in discussions about personal development.
She dedicated her lifetime to studying ancient civilizations.
The average lifetime of a certain insect is only a few weeks.
§ In the News
News reports often use 'lifetime' to describe the duration of a person's impact, the length of a sentence in legal cases, or the longevity of a political career. It's a powerful word to convey scale and permanence.
The politician served a lifetime of public service.
He was sentenced to a lifetime in prison.
§ Everyday Conversations
You'll also hear 'lifetime' in casual conversations, especially when people are talking about memorable experiences, long-term goals, or things that are very important to them.
That trip was the adventure of a lifetime!
I've been a fan for a lifetime!
§ Common Phrases with 'Lifetime'
- Phrase
- Once-in-a-lifetime opportunity: Something that happens very rarely and is very special.
- Phrase
- Lifetime achievement award: An award given to someone for their accomplishments throughout their entire career.
- Phrase
- Lifetime commitment: A promise or dedication that lasts for an entire life.
In summary, 'lifetime' is a versatile word that helps to express the concept of an entire duration, whether it's a person's existence or the functional period of an object. Its usage across work, school, news, and everyday conversations highlights its importance in the English language.
§ Understanding 'Lifetime' in Context
The word 'lifetime' refers to the duration of an individual's existence or the operational period of an inanimate object. It encapsulates the entire span from beginning to end, offering a comprehensive view of duration. To fully grasp its usage, it's beneficial to compare it with similar words like 'life,' 'lifespan,' 'duration,' and 'period,' each carrying subtle differences in connotation and application.
§ Lifetime vs. Life
- DEFINITION
- While 'life' can refer to the state of being alive or the experiences within that state, 'lifetime' specifically denotes the entire length of time that state endures.
She had many adventures during her lifetime.
Life is precious.
§ Lifetime vs. Lifespan
- DEFINITION
- 'Lifespan' is often used scientifically or biologically to refer to the expected or average length of life for a species or object. 'Lifetime' is more personal and can refer to an individual's actual duration of life or the actual period of an object's function.
The average human lifespan has increased over the centuries.
He made many friends during his lifetime.
§ Lifetime vs. Duration
- DEFINITION
- 'Duration' is a more general term for the length of time something lasts. 'Lifetime' is a specific kind of duration, pertaining to the existence of a person or the operational period of an object.
The movie had a duration of two hours.
He worked hard his entire lifetime.
§ Lifetime vs. Period
- DEFINITION
- 'Period' refers to a specific interval of time. 'Lifetime' is a continuous period, specifically the whole existence.
The Roman Empire existed for a long period.
This car is built to last a lifetime.
§ When to use 'Lifetime'
Use 'lifetime' when you want to convey the entirety of a person's existence, from birth to death, or the full functional period of an object. It often carries a sense of finality, comprehensiveness, or a significant span of time during which events unfold or characteristics remain.
- When discussing a person's entire experience or achievements:
She dedicated her entire lifetime to helping others.
- When referring to the guaranteed or expected operational period of a product:
The warranty covers the product for its lifetime.
- In expressions emphasizing long-lasting impact or rarity:
This is a once-in-a-lifetime opportunity.
难度评级
The word is common, but the definition is a bit long for an A1 learner. The second part of the definition introduces a more abstract concept of 'lifetime' for objects, which might be challenging.
The word is relatively straightforward to spell and pronounce for its length.
The pronunciation of 'lifetime' is regular and doesn't pose significant challenges.
The word is common and clearly articulated, making it easy to understand in spoken language.
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按水平分级的例句
My grandma had a long lifetime.
My grandma lived for many years.
Here, 'lifetime' refers to the duration of a person's life.
This car has a short lifetime.
This car will not work for many years.
Here, 'lifetime' refers to how long an object functions.
I want to learn many things in my lifetime.
I want to learn many things while I am alive.
This sentence uses 'lifetime' to talk about plans for one's own life.
The lamp's lifetime is five years.
The lamp will work for five years.
This specifies the expected functional duration of an object.
It was the best day of my lifetime.
It was the best day in my whole life.
This is an idiomatic way to express a very good experience.
The battery has a long lifetime.
The battery lasts for a long time.
Refers to the durability or operational period of an item.
He spent his lifetime helping others.
He helped others for all of his life.
Describes how a person used their entire life.
A butterfly's lifetime is short.
A butterfly lives for a short time.
Compares the duration of life for different creatures.
She dedicated her whole lifetime to helping others.
Ela dedicou toda a sua vida a ajudar os outros.
The warranty covers the product for its entire lifetime.
A garantia cobre o produto por toda a sua vida útil.
It was a once-in-a-lifetime opportunity to travel the world.
Foi uma oportunidade única na vida de viajar pelo mundo.
Here, 'once-in-a-lifetime' acts as an adjective.
Learning a new language can be a rewarding experience for a lifetime.
Aprender uma nova língua pode ser uma experiência gratificante para toda a vida.
Used with 'for a lifetime' to mean 'for the rest of one's life'.
Many people dream of finding their true love during their lifetime.
Muitas pessoas sonham em encontrar seu verdadeiro amor durante a vida.
The battery has a surprisingly long lifetime for a device of its size.
A bateria tem uma vida útil surpreendentemente longa para um aparelho do seu tamanho.
He spent his lifetime researching the mysteries of the universe.
Ele passou a vida pesquisando os mistérios do universo.
Building strong friendships can bring joy throughout your lifetime.
Construir amizades fortes pode trazer alegria durante toda a sua vida.
The discovery of penicillin revolutionized medicine, extending the average human lifetime by decades and eradicating diseases that once claimed millions.
Penicillin discovery changed medicine, making people live longer and stopping many diseases.
This sentence showcases complex sentence structure with multiple clauses and advanced vocabulary.
From an environmental perspective, extending the operational lifetime of consumer electronics through repair and refurbishment is crucial for reducing waste and conserving resources.
Making electronics last longer by fixing them is good for the environment, cutting down on trash and saving materials.
Uses sophisticated vocabulary and an abstract concept ('environmental perspective').
Historians often analyze the political landscape and societal norms that defined a monarch's lifetime to understand the long-term impacts of their reign.
Historians look at a king's time alive to see how their rule affected things for a long time.
Employs academic language and explores a complex historical analytical process.
The artist dedicated her entire lifetime to perfecting her craft, eschewing commercial success for artistic integrity, a decision that posthumously elevated her to legendary status.
The artist spent her whole life making her art perfect, choosing art over money, which made her famous after she died.
Features advanced vocabulary, an inverted clause structure ('eschewing commercial success...'), and an abstract concept ('artistic integrity').
Quantum physicists grapple with the incredibly short lifetime of certain subatomic particles, necessitating advanced instrumentation for their detection and study.
Scientists studying tiny particles deal with how quickly they disappear, needing special tools to find and study them.
Incorporates scientific terminology and a complex explanation of a scientific challenge.
For many entrepreneurs, the ultimate goal is to create a business with a sustainable and enduring lifetime, capable of weathering economic downturns and evolving market demands.
Business owners want to build a company that lasts a long time, able to handle bad economies and changing customer needs.
Uses business jargon and discusses abstract economic concepts like 'economic downturns' and 'evolving market demands'.
The philosophical debate surrounding the meaning of a fulfilling lifetime often delves into concepts of happiness, purpose, and the ethical implications of one's choices.
Discussions about a good life often talk about happiness, what's important, and the right and wrong of decisions.
Engages with abstract philosophical concepts and complex ethical considerations.
Despite its initial promise, the software's notoriously short operational lifetime due to frequent bugs and lack of updates led to widespread user dissatisfaction.
Even though it looked good at first, the software didn't last long because of many problems and no updates, making users unhappy.
Uses formal language to describe a technical problem and its consequence, with 'notoriously short' indicating a known negative quality.
词族
名词
形容词
在生活中练习
真实语境
When we talk about someone's personal journey, we often reflect on their accomplishments and experiences during their lifetime.
- throughout her lifetime
- during his lifetime
- in their lifetime
For a machine or product, 'lifetime' refers to how long it's expected to function effectively before needing replacement or major repair.
- product lifetime
- expected lifetime
- lifetime guarantee
When discussing historical figures, we might consider the events that shaped their decisions and legacy throughout their lifetime.
- lived a full lifetime
- dedicated his lifetime to
- a once-in-a-lifetime opportunity
In some discussions, 'lifetime' can represent the duration of a certain trend or phenomenon, like the lifetime of a star or a particular fashion.
- the lifetime of a star
- the lifetime of a project
- a lifetime of memories
Sometimes, 'lifetime' is used to emphasize the importance or permanence of something, such as a lifetime commitment or a lifetime achievement award.
- lifetime commitment
- lifetime achievement
- a lifetime supply
对话开场白
"What is one thing you would like to achieve in your lifetime?"
"Can you think of a machine or product that has a surprisingly long or short lifetime?"
"Who is someone, alive or historical, whose lifetime story you find particularly inspiring?"
"What do you consider a 'lifetime' of happiness?"
"If you could have a lifetime supply of one thing, what would it be and why?"
日记主题
Reflect on a significant event or period in your life so far. How has it shaped you, and what lessons have you learned that you will carry throughout your lifetime?
Imagine you are designing a product. What factors would you consider to ensure it has a long and useful lifetime for its users?
Write about a person (real or fictional) whose lifetime journey fascinates you. What aspects of their life stand out, and what impact did they have?
Consider the concept of a 'lifetime of learning.' What areas would you most like to continue exploring and growing in throughout your life?
Describe what a 'successful lifetime' means to you, not just in terms of accomplishments, but also in terms of experiences, relationships, and personal fulfillment.
自我测试 108 个问题
My grandmother lived a happy ___.
The word 'lifetime' means the entire period a person is alive, which fits the context of someone living a happy period.
This car has a ___ of ten years.
'Lifetime' can also refer to how long an object, like a car, works correctly.
It was the best day of my ___.
In this context, 'lifetime' refers to the entire period of a person's life.
The ___ of this battery is about two years.
'Lifetime' can describe how long an object, such as a battery, functions correctly.
He has traveled the world in his ___.
Here, 'lifetime' indicates the entire duration of his existence during which he traveled.
My phone has a long ___.
'Lifetime' refers to how long an object, like a phone, continues to work effectively.
My grandmother had a long _____. She lived for 95 years.
The word 'lifetime' refers to the entire period a person is alive. In this sentence, it describes the grandmother's 95 years of life.
A car has a long _____ if you take good care of it.
'Lifetime' can also refer to how long an object, like a car, works well.
What is the meaning of 'lifetime' in this sentence: 'I will remember this day for my whole lifetime.'?
In this context, 'my whole lifetime' means for the entire duration of the speaker's life.
A lifetime is always a short period of time.
A lifetime is the entire period a person is alive, which can be long, or the full duration an object works.
My pet dog has a lifetime.
Yes, 'lifetime' can refer to the period an animal is alive.
If a phone works for ten years, it has a short lifetime.
For a phone, ten years is generally considered a long lifetime, not a short one.
Listen for how long someone lived.
Listen for how long something works.
Listen for when we learn things.
Read this aloud:
A cat's lifetime is shorter than a human's.
Focus: lifetime
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Read this aloud:
My phone has a long lifetime.
Focus: lifetime
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Read this aloud:
What do you want to do in your lifetime?
Focus: lifetime
你说的：
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Write a sentence using the word "lifetime" to describe how long a person lives.
Well written! Good try! Check the sample answer below.
Sample answer
My grandma had a long and happy lifetime.
Use "lifetime" in a sentence to talk about how long an object works.
Well written! Good try! Check the sample answer below.
Sample answer
This old car had a long lifetime.
Complete the sentence: A cat's __________ is usually shorter than a human's.
Well written! Good try! Check the sample answer below.
Sample answer
A cat's lifetime is usually shorter than a human's.
How long did the grandfather live?
Read this passage:
My grandfather lived for 90 years. That was a very long lifetime for him. He saw many changes in the world during his life.
How long did the grandfather live?
The passage says, 'My grandfather lived for 90 years.'
The passage says, 'My grandfather lived for 90 years.'
What is the lifetime of the washing machine?
Read this passage:
This washing machine has been working for 15 years. It has had a good lifetime. Now it is old and sometimes breaks.
What is the lifetime of the washing machine?
The passage states, 'This washing machine has been working for 15 years.'
The passage states, 'This washing machine has been working for 15 years.'
Which animal has a longer lifetime?
Read this passage:
A butterfly's lifetime is often very short, sometimes only a few weeks. A turtle, however, can live for a very long lifetime, over 100 years!
Which animal has a longer lifetime?
The passage says 'A turtle, however, can live for a very long lifetime, over 100 years!' and 'A butterfly's lifetime is often very short, sometimes only a few weeks.'
The passage says 'A turtle, however, can live for a very long lifetime, over 100 years!' and 'A butterfly's lifetime is often very short, sometimes only a few weeks.'
The correct order of words to form a grammatically correct sentence is 'His lifetime was long.'
The correct order of words to form a grammatically correct sentence is 'A dog's lifetime is short.'
The correct order of words to form a grammatically correct sentence is 'The machine's lifetime is ten years.'
My grandmother lived a long and happy ______.
The word 'lifetime' refers to the entire period of a person's life.
The ______ of this car is about 15 years if you take good care of it.
Here, 'lifetime' refers to the period during which an object functions correctly.
Learning to swim is a skill that will last a ______.
This sentence means the skill will be useful for the entire period of one's life.
A human's lifetime is usually shorter than an insect's lifetime.
Humans typically live much longer than insects.
The 'lifetime' of a battery refers to how long it can power a device.
For an object like a battery, 'lifetime' means the period it works correctly.
You can have many different lifetimes in one person's life.
A person has only one lifetime, which is the entire period they are alive.
This sentence describes the duration of someone's dedication.
This sentence refers to the operational period of an object.
This sentence talks about an experience within a person's life.
She dedicated her entire ___ to helping others, working tirelessly for various charities.
The word 'lifetime' refers to the entire period of a person's life, which fits the context of dedicating years to a cause.
This washing machine has a projected ___ of ten years if properly maintained.
When referring to an object, 'lifetime' indicates the period it is expected to function correctly.
Winning the lottery is a once-in-a-___ opportunity for many people.
'Once-in-a-lifetime' is a common idiom meaning something that happens only once in a person's entire life.
The company guarantees the product for its natural ___, promising to replace it if it fails prematurely.
Here, 'natural lifetime' refers to the expected duration of functionality for a product.
Many artists hope their work will be appreciated for a ___ after they are gone.
This sentence implies that the appreciation of the art will last throughout the lives of those who view it, hence 'lifetime'.
It took him a ___ to finally master the complex art of playing the violin.
To say something takes 'a lifetime' suggests it takes a very long time, often an entire life, to achieve mastery.
Which of the following best describes 'lifetime' when referring to a person?
A person's lifetime is the entire duration they are alive.
If a car has a 'lifetime warranty', what does that typically mean?
For an object, 'lifetime' refers to the period it is expected to function correctly.
Which sentence uses 'lifetime' in the context of an object?
This sentence refers to the operational duration of a smartphone, which is an object.
The phrase 'a once-in-a-lifetime opportunity' means an opportunity that happens very frequently.
A 'once-in-a-lifetime opportunity' means it's an extremely rare chance that might only happen once in a person's entire life.
When we talk about the 'lifetime' of a product, we are referring to how long it takes to manufacture it.
The 'lifetime' of a product refers to how long it functions or is expected to last, not how long it takes to make.
Spending your 'lifetime' with someone implies a long-term, committed relationship.
Spending your 'lifetime' with someone means to be with them for the duration of your life, indicating a long-term commitment.
The sentence is about someone's dedication to science.
The sentence refers to the lifespan of a vehicle.
The sentence talks about musicians creating lasting memories.
Read this aloud:
What do you hope to achieve in your lifetime?
Focus: lifetime
你说的：
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Read this aloud:
Can you describe a moment from your lifetime that you will never forget?
Focus: lifetime, never forget
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Read this aloud:
Some people believe that true happiness is a journey that lasts a lifetime. Do you agree?
Focus: true happiness, lifetime
你说的：
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The company guarantees its washing machines will last a _______ of at least ten years.
In this context, 'lifetime' refers to the duration an object, like a machine, is expected to function properly.
She dedicated her entire _______ to humanitarian work, helping those in need around the globe.
Here, 'lifetime' refers to the entire period of time a person is alive, emphasizing her lifelong commitment.
A good education can have a profound impact on a person's entire _______, opening up many opportunities.
This sentence uses 'lifetime' to denote the full span of a person's existence, highlighting the long-term effects of education.
Many historical figures achieved greatness during their _______, leaving a lasting legacy for future generations.
The term 'lifetime' is used here to indicate the period when historical figures were alive and made their contributions.
The software update is designed to extend the _______ of the device by improving its overall performance.
In this case, 'lifetime' refers to the operational duration of an electronic device.
Experiencing such a rare astronomical event is truly a once-in-a-_______ opportunity.
This idiom 'once-in-a-lifetime' means something that happens very rarely or only once during a person's entire life.
Which of the following best describes the concept of a 'lifetime' in the context of a person?
The definition states that a lifetime is 'the entire period of time that a person is alive,' which directly corresponds to the duration from birth to death.
When referring to an object, what does 'lifetime' primarily indicate?
The definition specifies that for an object, 'lifetime' refers to 'the length of time that an object, like a machine, works correctly.' This means the period it functions without issues.
If a product has a 'lifetime guarantee,' what does that usually imply?
A 'lifetime guarantee' typically means the product is guaranteed for the entire period it is reasonably expected to operate correctly, aligning with the definition of an object's lifetime.
The 'lifetime' of a battery refers to how long it takes to charge.
The 'lifetime' of a battery refers to how long it can power a device or how many charge cycles it can endure, not the duration of a single charge.
A person's 'lifetime' can be extended indefinitely through advanced medical technology.
While medical technology can extend a person's lifespan, the concept of a 'lifetime' still refers to a finite period from birth to death, which currently cannot be made indefinite.
The 'lifetime' of a star is measured in billions of years.
Astronomically, the 'lifetime' of a star, from its formation to its eventual demise, is indeed measured in billions of years, which aligns with the concept of a total period of existence.
The correct order forms a common idiom meaning a very rare opportunity.
The sentence describes someone experiencing happiness throughout their life.
This sentence refers to the duration an object is expected to function.
The CEO dedicated her entire ___ to building the company into a global powerhouse.
The context implies a long period of dedication, aligning with the meaning of 'lifetime' as the entire duration of a person's existence.
A well-maintained classic car can have an incredibly long ___ on the road.
Here, 'lifetime' refers to the duration an object (the car) functions effectively, fitting the second definition provided.
Scientists are working on materials that will significantly extend the ___ of electronic devices, reducing waste.
The sentence discusses extending the operational period of objects, directly matching the 'lifetime' of a machine.
For many artists, the pursuit of their passion is a ___ commitment, consuming their every waking moment.
This implies a commitment that lasts for the entire duration of their lives, making 'lifetime' the most appropriate word.
The ancient oak tree has stood sentinel over the valley for a ___ of over 500 years.
Even for a tree, 'lifetime' can be used metaphorically to describe its entire existence or duration.
Achieving true mastery in a complex skill often requires a ___ of dedicated practice and learning.
The phrase suggests a very long, extensive period of effort, which 'lifetime' accurately conveys in this context.
Focus on understanding the impact of leadership over a long period.
Consider what 'mastery' implies in terms of duration.
Think about the object's operational lifespan.
Read this aloud:
Reflect on a skill or endeavor that you believe is worth dedicating a significant portion of your lifetime to mastering.
Focus: dedicating, mastering, significant
你说的：
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Read this aloud:
Discuss the concept of 'legacy' and how individuals can strive to create a meaningful impact that extends beyond their own lifetime.
Focus: legacy, meaningful, extends
你说的：
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Read this aloud:
Consider the advancements in technology that have demonstrably extended the average human lifetime in many parts of the world. What ethical considerations arise from this trend?
Focus: advancements, demonstrably, ethical considerations
你说的：
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Which of the following best captures the essence of 'lifetime' in the context of an enduring legacy?
At a C2 level, 'lifetime' in relation to legacy implies a profound, lasting influence, which is best described as the cumulative impact over an entire existence, rather than just the physical duration or a temporary event.
In a philosophical discussion about the impermanence of existence, which option most accurately reflects the nuanced understanding of 'lifetime'?
For a C2 philosophical understanding, 'lifetime' transcends a mere biological or chronological definition, acknowledging its finiteness but emphasizing the individual's capacity to assign meaning within that finite span.
Which sentence uses 'lifetime' with the most sophisticated metaphorical implication, suggesting a profound and transformative experience?
At C2, 'lifetime' can be used metaphorically to refer to abstract aspects of existence. Here, 'emotional and intellectual lifetime' signifies a profound shift in one's inner world, beyond a simple chronological span.
The concept of a 'lifetime achievement award' primarily celebrates an individual's physical longevity rather than their sustained contributions.
A 'lifetime achievement award' at a C2 understanding clearly recognizes an individual's accumulated, significant contributions and impact over the course of their career or life, not just how long they have lived.
When an economist refers to the 'lifetime earnings' of an individual, they are solely considering the income earned from their first job to retirement, excluding any other forms of financial gain.
In an economic context at C2, 'lifetime earnings' encompass all forms of income and financial gains accumulated over an individual's entire life, not just strictly employment income from first job to retirement. This could include investments, inheritances, etc.
The phrase 'once in a lifetime opportunity' universally implies an event that is biologically impossible to repeat within a single human lifespan.
While 'once in a lifetime' suggests extreme rarity and uniqueness, it doesn't always mean biological impossibility to repeat. It often refers to an extraordinary, highly improbable event unlikely to recur for an individual, even if theoretically possible.
Consider the nuances of 'eschewing' and 'artistic integrity' in the context of a sculptor's dedication.
Focus on how 'groundbreaking research' and its impact can extend over an indefinite period.
Think about how 'operational lifetime' applies to an inanimate object like software and what might shorten it.
Read this aloud:
Discuss the ethical implications of extending human lifetime indefinitely through advanced medical technologies.
Focus: indefinitely, implications, technologies
你说的：
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Read this aloud:
Elaborate on how a single pivotal event can irrevocably alter the trajectory of an individual's lifetime.
Focus: pivotal, irrevocably, trajectory
你说的：
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Read this aloud:
Compare and contrast the concept of an 'ideal lifetime' across different cultural or philosophical perspectives.
Focus: compare, contrast, philosophical, perspectives
你说的：
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This sentence describes how a lifetime of wisdom has been condensed into her memoirs, fitting the C2 level of complexity.
This sentence uses 'pinnacle of a lifetime endeavor' to convey the culmination of a significant, long-term effort, appropriate for C2.
This sentence employs 'endure a lifetime of cultural shifts and historical upheavals' to describe the longevity and resilience of the monuments, suitable for C2 vocabulary and structure.
/ 108 correct
Perfect score!
Summary
Lifetime refers to the complete duration of a person's life or the functional period of an object.
- Duration of existence
- Period of functionality
- Total time alive
例句
He lived in the same house for his entire lifetime.
相关内容
更多Time词汇
moment
A1指极短的一段时间或特定的某个时刻。常用于请人稍等片刻，或描述当下发生的事情。
night
A1夜晚是日落和日出之间天空黑暗的时间段。这是大多数人休息、睡觉的时间，月亮也经常可见。
aeons
C1An indefinitely long period of time; an age. Often used in the plural to exaggerate how long something takes or how much time has passed.
end
A1指某事物的最后部分或结论，例如一段时间或一项活动。它代表事物停止的点。
finally
C1用于表示某事在长时间等待后终于发生，或引出列表中的最后一点。
decade
B2A period of ten years, typically used to measure time or categorize a specific historical era. It is a common unit of time used to track social, economic, or personal changes over a significant duration.
happen
A1发生或出现，通常是未经计划或偶然发生的。它描述了一个在特定时间出现的事件或情况。
period
B2A length or portion of time that is defined by specific events, characteristics, or conditions. It can also refer to one of the divisions of a school day or a punctuation mark used at the end of a sentence.
forthcoming
B2指即将发生的事情，或者形容人乐于提供信息、态度积极。
ongoing
B2Describes a process, situation, or activity that is currently in progress and has not yet reached a conclusion. It implies that something started in the past and is continuing into the present and likely the future.
