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A1 verb #1,500 सबसे आम 9 मिनट पढ़ने का समय

介绍

jieshao शीर्ष 1,500

At the A1 level, '介绍' (jièshào) is one of the most essential verbs you will learn. It is primarily used for the simple act of introducing yourself or someone else in a basic social setting. You will encounter it in phrases like '自我介绍' (self-introduction), which is a standard part of any first meeting. At this stage, the focus is on the basic structure: '我介绍一下' (Let me introduce briefly). You learn to use it with family members and friends, such as '我介绍我的爸爸' (I introduce my dad). The grammar is kept simple, usually following the Subject + Verb + Object pattern. You also learn that adding '一下' (yīxià) after the verb makes you sound more like a native speaker and much more polite. This level focuses on the immediate social utility of the word—getting people to know each other's names and basic identities.

At the A2 level, you begin to use '介绍' in more varied contexts and with slightly more complex grammar. You start using the '给' (gěi) structure: '我给你介绍我的朋友' (I introduce my friend to you). This is a crucial step in moving beyond simple sentences. You also begin to use '介绍' to talk about things other than people, such as introducing your hometown (介绍我的家乡) or a favorite food (介绍好吃的菜). You might also encounter '介绍' as a noun in simple phrases like '看介绍' (look at the introduction/description). The vocabulary surrounding '介绍' expands to include basic adjectives, like '简单介绍' (simple introduction). You are now able to not only introduce people but also provide basic information about places and objects using this verb.

At the B1 level, '介绍' moves into professional and educational spheres. You learn to use it for presenting plans, projects, or company backgrounds. The preposition '向' (xiàng) becomes more common as a formal alternative to '给', as in '向大家介绍我们的计划' (introduce our plan to everyone). You also start to see '介绍' in the context of 'recommendation,' such as '朋友介绍的工作' (a job introduced/recommended by a friend). At this stage, you are expected to provide more detailed introductions, using phrases like '详细介绍' (introduce in detail). You also begin to understand the cultural nuances of introductions in China, such as the importance of titles and the order of who is introduced to whom. Your use of '介绍' becomes a tool for more complex information exchange and networking.

At the B2 level, you use '介绍' with a high degree of fluency and nuance. You can distinguish between '介绍' and similar words like '推荐' (recommend) or '引荐' (formally introduce). You use '介绍' in more abstract contexts, such as '介绍背景' (introducing the background of an issue) or '介绍情况' (briefing on a situation). You are comfortable using the '把' (bǎ) construction for introductions: '我把这位专家介绍给你们' (I introduce this expert to you). You also encounter '介绍' in more formal written Chinese, such as in the '引言' (introduction) of an essay or the '前言' (foreword) of a book. Your ability to use '介绍' now reflects a deeper understanding of social hierarchy and professional etiquette, allowing you to navigate complex social and business situations with ease.

At the C1 level, '介绍' is used in sophisticated ways to mediate complex ideas and relationships. You might use it in academic or literary contexts to discuss the 'introduction' of foreign concepts into a culture (引进与介绍). You understand the subtle implications of who is doing the introducing and what that says about the relationship between the parties. You can use '介绍' to summarize complex arguments or to provide a nuanced overview of a historical period. The word becomes a tool for synthesis and high-level communication. You also recognize '介绍' in idiomatic or classical-leaning expressions. Your mastery of '介绍' at this level is not just about the word itself, but about using it to facilitate deep intellectual and cultural exchange.

At the C2 level, your use of '介绍' is indistinguishable from that of a highly educated native speaker. You can use it to discuss the philosophical implications of 'mediation' or the historical evolution of social introductions. You are aware of the most formal and archaic synonyms and can use '介绍' in any register, from street slang to the most formal diplomatic language. You might analyze the '介绍' section of a classical text or use the word to describe the intricate ways in which different fields of knowledge intersect. At this level, '介绍' is no longer just a vocabulary item; it is a versatile conceptual tool that you use to navigate and describe the most complex aspects of human interaction and thought.

इसका अभ्यास करें उदाहरण नोट्स और सुझाव

介绍 30 सेकंड में

介绍 (jièshào) is the primary Chinese verb for 'to introduce,' used for people, places, and things.
It often requires the preposition '给' (gěi) or '向' (xiàng) to indicate who is receiving the introduction.
Adding '一下' (yīxià) after the verb is a common way to make the tone more polite and natural.
It can also function as a noun meaning 'introduction,' 'description,' or 'profile' in various contexts.

The word 介绍 (jièshào) is a cornerstone of Chinese social interaction, primarily serving as the verb 'to introduce.' At its core, it describes the act of acting as a bridge between two parties—whether those parties are people, ideas, products, or places. The first character, 介 (jiè), historically depicts a person standing between two things, symbolizing mediation or being 'in between.' The second character, 绍 (shào), carries the meaning of connecting or continuing, often related to silk threads being joined together. Combined, jièshào implies the purposeful act of bringing two separate entities into a state of mutual knowledge or connection.

Social Function: In Chinese culture, introductions are vital for establishing 'guanxi' (relationships). To introduce someone is to vouch for them, creating a social link that didn't exist before.
Functional Scope: While 'introduce' is the primary translation, it also covers 'to present' (a plan), 'to brief' (on a situation), or 'to recommend' (a dish or a book).

请让我介绍一下我的同事。(Qǐng ràng wǒ jièshào yīxià wǒ de tóngshì.)

Please let me introduce my colleague.

Beyond simple person-to-person meetings, 介绍 is used extensively in business contexts. When a company 'introduces' a new product to the market, they use 介绍. When a tour guide 'introduces' the history of the Great Wall, they use 介绍. It is a versatile tool for information transfer. In academic settings, the 'Introduction' section of a paper is called the 介绍 or 引言. Understanding this word is essential because it moves beyond mere vocabulary; it is the linguistic key to opening doors in Chinese society. Whether you are at a party, a job interview, or a restaurant, you will find yourself either performing an introduction or receiving one. The word carries a sense of responsibility; by introducing someone, you are momentarily the center of a social web, weaving new connections just as the character 绍 suggests with its silk radical.

他向我们介绍了这家餐厅的特色菜。(Tā xiàng wǒmen jièshào le zhè jiā cāntīng de tèsè cài.)

He introduced/recommended the specialty dishes of this restaurant to us.

Etymological Insight: The 'silk' radical (纟) in 绍 hints at the historical role of a matchmaker or middleman who 'threads' people together.

Using 介绍 (jièshào) correctly requires understanding its common grammatical patterns. Unlike English, where you simply 'introduce someone,' Chinese often utilizes prepositional phrases to specify the direction of the introduction. The most common structure is A 给 B 介绍 C (A introduces C to B). This '给' (gěi) structure is fundamental for beginners to master.

Pattern 1: Direct Introduction: [Subject] + 介绍 + [Object]. Example: 我介绍我的家乡。(I introduce my hometown.)
Pattern 2: The 'To' Structure: [Subject] + 给/向 + [Recipient] + 介绍 + [Object]. Example: 老师向学生介绍新书。(The teacher introduces a new book to the students.)

我想给你介绍一位新朋友。(Wǒ xiǎng gěi nǐ jièshào yī wèi xīn péngyǒu.)

I want to introduce a new friend to you.

Another important aspect is the use of '一下' (yīxià) or '一下儿' (yīxiàr). In Chinese, verbs are often followed by '一下' to indicate a brief action or to make the tone more polite and less demanding. Saying '我介绍一下' (Let me introduce briefly) sounds much more natural than just '我介绍.' Furthermore, 介绍 can function as a noun, meaning 'introduction' or 'presentation.' For example, '自我介绍' (zìwǒ jièshào) means 'self-introduction,' a phrase you will hear in every interview or first class.

面试的第一步通常是自我介绍。(Miànshì de dì yī bù tōngcháng shì zìwǒ jièshào.)

The first step of an interview is usually a self-introduction.

Common Complements: 介绍完 (finished introducing), 介绍清楚 (introduced clearly), 介绍给 (introduce to).

In more formal or written Chinese, you might see '介绍' paired with '背景' (bèijǐng - background) or '情况' (qíngkuàng - situation). For instance, '介绍背景' means to provide background information. In these cases, the translation shifts slightly from 'introduce' to 'provide an overview' or 'brief.' It's also worth noting that in professional settings, '介绍' can be synonymous with 'recommendation' for a job, though '推荐' (tuījiàn) is more specific for that purpose. If someone says '他是张教授介绍来的' (He was introduced/recommended by Professor Zhang), it implies a level of endorsement.

The word 介绍 (jièshào) is ubiquitous in daily life, appearing in social, professional, and educational settings. One of the most common places you'll hear it is at the start of any meeting or social gathering. Whether it's a casual dinner where a friend says, '我来介绍一下' (Let me introduce...), or a formal conference where the host says, '现在由我来介绍今天的嘉宾' (Now I will introduce today's guests), the word acts as the official signal for a new connection being made.

欢迎大家，我先介绍一下公司的背景。(Huānyíng dàjiā, wǒ xiān jièshào yīxià gōngsī de bèijǐng.)

Welcome everyone, I will first introduce the company's background.

In the Classroom: Teachers frequently use it to introduce new concepts: '今天我们要介绍一个新的语法点' (Today we are going to introduce a new grammar point).
In Tourism: Tour guides are professional 'introducers.' You'll hear: '请听我为您介绍故宫的历史' (Please listen to me introduce the history of the Forbidden City).

In the digital age, you'll encounter 介绍 on almost every website and app. The 'About Us' section is typically titled '公司介绍' (Company Introduction) or '关于我们' (About Us). Product pages will have a '产品介绍' (Product Description/Introduction) section detailing features and specifications. Even on social media, a user's bio is essentially their '个人介绍' (Personal Introduction). In these contexts, the word leans more towards 'description' or 'profile' than the verbal act of introducing.

书的封面上有一段作者介绍。(Shū de fēngmiàn shàng yǒu yī duàn zuòzhě jièshào.)

There is an author introduction on the cover of the book.

Finally, in the realm of dating or matchmaking—a significant part of Chinese culture—介绍 is the standard term. A '介绍人' (jièshàorén) is a matchmaker or the person who introduced a couple. You might hear someone ask, '你们是怎么认识的？' (How did you meet?), and the answer might be '朋友介绍的' (Introduced by a friend). This simple phrase carries a lot of weight, as it implies the relationship has a foundation of trust provided by the mutual friend.

While 介绍 (jièshào) is a high-frequency word, learners often stumble on its syntax and nuanced usage. The most frequent error involves the preposition '给' (gěi). English speakers often say 'I introduce you my friend,' which translates literally to '我介绍你我的朋友.' However, in Chinese, the recipient of the introduction must be preceded by '给' or '向'.

Mistake 1: Missing the Preposition: Incorrect: 我介绍你他。 (Wǒ jièshào nǐ tā.)
Correct: 我给你介绍他。 (Wǒ gěi nǐ jièshào tā.)
Mistake 2: Confusing with 'Recommend': While 介绍 can mean recommend, for strong professional recommendations, use 推荐 (tuījiàn). Using 介绍 for a job recommendation might sound too casual.

不要说“我介绍你一个好地方”，要说“我给你介绍一个好地方”。

Don't say 'I introduce you a good place,' say 'I introduce a good place TO you.'

Another subtle mistake is the misuse of '一下' (yīxià). While it's great for politeness, overusing it in very formal written documents can make the writing seem too colloquial. In a formal report, instead of '介绍一下背景,' you would simply write '介绍背景' or '背景介绍.' Conversely, failing to use '一下' in spoken Chinese can make you sound blunt or overly assertive, like you're demanding someone's attention rather than politely requesting it.

错误：他介绍我他的老师。正确：他把他的老师介绍给我。

Using the '把' (bǎ) construction is also a common and correct way to structure introductions.

Word Order Trap: Remember: Subject + [Preposition + Recipient] + Verb. The 'who you are introducing to' comes BEFORE the verb '介绍'.

Lastly, learners sometimes confuse 介绍 with 认识 (rènshi - to know/meet). If you want to say 'I met him through a friend,' you should say '是通过朋友介绍认识的' (met through a friend's introduction). Just saying '我介绍他' means you are the one doing the introducing, not that you met him.

To truly master 介绍 (jièshào), it's helpful to compare it with other words that occupy similar semantic space. While 介绍 is the general-purpose 'introduce,' other words provide more specific nuances depending on the context of the interaction.

推荐 (tuījiàn) vs. 介绍: 推荐 means 'to recommend.' While you can 介绍 a book (tell someone about it), you 推荐 a book when you actively suggest they read it because it's good. 介绍 is neutral; 推荐 is positive.
引荐 (yǐnjiàn) vs. 介绍: 引荐 is a more formal version of 介绍, often used when introducing someone to a person of higher status or for a specific opportunity. It implies a formal recommendation or 'vouching' for someone.
说明 (shuōmíng) vs. 介绍: 说明 means 'to explain' or 'to illustrate.' While a product 介绍 tells you what it is, a product 说明 tells you how it works or why it is the way it is.

我给你介绍一下这款手机，但我更推荐那一台。(I'll introduce this phone to you, but I recommend that one more.)

In formal presentations, you might also encounter 阐述 (chǎnshù - to elaborate/expound) or 演示 (yǎnshì - to demonstrate). While 介绍 provides the overview, 阐述 dives deep into the logic, and 演示 shows the thing in action. Understanding these distinctions allows you to choose the precise word for your intent. For example, if you are a student presenting a project, you start with an 介绍 of the topic, then 阐述 your findings, and finally 演示 your results.

通过他的引荐，我见到了总经理。(Through his formal introduction/recommendation, I met the general manager.)

Summary Table

介绍: General, neutral, informational.
推荐: Suggestive, positive, opinionated.
引荐: Formal, status-oriented, professional.
说明: Explanatory, technical, logical.

How Formal Is It?

औपचारिक

अनौपचारिक

बोलचाल

कठिनाई स्तर

ज़रूरी व्याकरण

स्तर के अनुसार उदाहरण

我介绍一下，这是我的朋友。

Let me introduce, this is my friend.

Use '一下' to soften the tone.

请你介绍你自己。

Please introduce yourself.

Direct object '你自己' follows the verb.

他介绍他的家人。

He introduces his family.

Simple SVO structure.

我来介绍一下这个菜。

Let me introduce this dish.

'我来' (wǒ lái) means 'let me' or 'I will'.

这是我的自我介绍。

This is my self-introduction.

Used here as a noun.

王老师介绍新同学。

Teacher Wang introduces the new student.

Subject is Teacher Wang.

你想介绍谁？

Who do you want to introduce?

Question word '谁' at the end.

他介绍了一本书。

He introduced a book.

'了' indicates the action is completed.

我给你介绍我的哥哥。

I introduce my older brother to you.

Use '给' to indicate the recipient.

他向我们介绍他的学校。

He introduces his school to us.

'向' is a more formal version of '给'.

请介绍一下你家乡的情况。

Please introduce the situation of your hometown.

'情况' means situation or circumstances.

我介绍他去那家公司工作。

I introduced/recommended him to work at that company.

Here '介绍' implies a recommendation.

这本手册介绍了北京的景点。

This brochure introduces Beijing's attractions.

The subject is an inanimate object (the brochure).

你能给我介绍一个好老师吗？

Can you introduce/recommend a good teacher to me?

Interrogative sentence with '吗'.

他介绍得很清楚。

He introduced (it) very clearly.

Use '得' to describe how the action was performed.

我不需要你介绍。

I don't need you to introduce (me/it).

Negative form using '不'.

经理向客户介绍新产品。

The manager introduces the new product to the client.

Formal business context.

他详细地介绍了项目的进展。

He introduced the project's progress in detail.

Adverbial '详细地' modifies the verb.

我是通过朋友介绍认识他的。

I met him through a friend's introduction.

The '是...的' construction emphasizes the method.

请简要介绍一下你的工作经历。

Please briefly introduce your work experience.

'简要' means briefly.

这篇文章介绍了中国的传统节日。

This article introduces China's traditional festivals.

Written context.

他被介绍到这家医院当医生。

He was introduced/recommended to work as a doctor in this hospital.

Passive voice using '被'.

我们需要一位介绍人。

We need an introducer/matchmaker.

'介绍人' is a specific noun for a person who introduces.

他介绍的方法非常有效。

The method he introduced is very effective.

The phrase '他介绍的' modifies '方法'.

主持人介绍说，这位嘉宾是著名的作家。

The host introduced (saying) that this guest is a famous writer.

'介绍说' is a common way to report an introduction.

他把最新的研究成果介绍给了大家。

He introduced the latest research results to everyone.

Using '把' to emphasize the object.

这篇论文介绍了该技术的应用前景。

This paper introduces the application prospects of this technology.

Academic context.

他向我介绍了一些投资的技巧。

He introduced some investment tips to me.

Abstract object '技巧' (tips/skills).

政府正在向市民介绍新的政策。

The government is introducing the new policy to the citizens.

Ongoing action with '正在'.

由于朋友的介绍，我才买了这个保险。

Because of a friend's introduction, I bought this insurance.

'由于...才' indicates cause and effect.

请你介绍一下这个词的背景。

Please introduce the background of this word.

'背景' refers to the context or history.

他介绍的情况与事实不符。

The situation he introduced does not match the facts.

Formal comparison.

这本书系统地介绍了西方哲学史。

This book systematically introduces the history of Western philosophy.

'系统地' (systematically) is a high-level adverb.

他试图向国内读者介绍这种全新的理念。

He is trying to introduce this brand-new concept to domestic readers.

'理念' (concept/philosophy) is an abstract noun.

通过他的引荐，我得以进入这个核心圈子。

Through his formal introduction, I was able to enter this core circle.

'引荐' is a formal synonym for '介绍'.

导言部分对全书的内容做了简要介绍。

The introduction section provides a brief overview of the book's content.

Formal written structure '对...做介绍'.

他向我们介绍了该地区复杂的政治局势。

He introduced the complex political situation of the region to us.

High-level vocabulary '政治局势'.

这篇文章旨在介绍最新的科研动态。

This article aims to introduce the latest scientific research trends.

'旨在' (aims to) is formal.

他介绍的经验对我们很有启发。

The experience he introduced was very inspiring to us.

'启发' (inspiration/enlightenment).

他被公认为向西方介绍中国文学的先驱。

He is recognized as a pioneer in introducing Chinese literature to the West.

Complex sentence structure.

该著作详尽地介绍了这一学术流派的演变过程。

This work introduces the evolution process of this academic school in great detail.

'详尽地' (exhaustively) and '流派' (school of thought).

他以敏锐的洞察力向世人介绍了一种新的美学范式。

With keen insight, he introduced a new aesthetic paradigm to the world.

'美学范式' (aesthetic paradigm) is highly academic.

这种制度的介绍和推广面临着巨大的阻力。

The introduction and promotion of this system face enormous resistance.

Used as a noun in a complex subject.

他不仅是介绍者，更是这一思想的践行者。

He is not only an introducer but also a practitioner of this thought.

'不仅...更是' structure.

文章对该理论的渊源进行了深入浅出的介绍。

The article provides an easy-to-understand but profound introduction to the origins of the theory.

Idiom '深入浅出' (profound but simple).

这种跨文化的介绍往往伴随着某种程度的误读。

This kind of cross-cultural introduction is often accompanied by a certain degree of misreading.

Abstract sociological observation.

他致力于将前沿的科技成果介绍给普通大众。

He is dedicated to introducing cutting-edge scientific achievements to the general public.

'致力于' (dedicated to) and '前沿' (cutting-edge).

这篇序言对作者的创作背景做了宏观的介绍。

This preface provides a macroscopic introduction to the author's creative background.

'宏观' (macroscopic/broad) is a high-level adjective.

सामान्य शब्द संयोजन

自我介绍 (zìwǒ jièshào) - self-introduction

详细介绍 (xiángxì jièshào) - detailed introduction

简单介绍 (jiǎndān jièshào) - brief introduction

背景介绍 (bèijǐng jièshào) - background introduction

产品介绍 (chǎnpǐn jièshào) - product description

朋友介绍 (péngyǒu jièshào) - introduced by a friend

书面介绍 (shūmiàn jièshào) - written introduction

口头介绍 (kǒutóu jièshào) - oral introduction

系统介绍 (xìtǒng jièshào) - systematic introduction

全面介绍 (quánmiàn jièshào) - comprehensive introduction

सामान्य वाक्यांश

介绍信 (jièshàoxìn) - letter of introduction

介绍人 (jièshàorén) - introducer/matchmaker

介绍对象 (jièshào duìxiàng) - to introduce a potential romantic partner

互相介绍 (hùxiāng jièshào) - introduce each other

介绍经验 (jièshào jīngyàn) - to share/introduce experience

介绍情况 (jièshào qíngkuàng) - to brief on a situation

介绍背景 (jièshào bèijǐng) - to give background

介绍工作 (jièshào gōngzuò) - to help someone find a job

介绍新书 (jièshào xīnshū) - to introduce a new book

介绍景点 (jièshào jǐngdiǎn) - to introduce tourist spots

अक्सर इससे भ्रम होता है

介绍 vs 推荐

介绍 is neutral information; 推荐 is a positive suggestion.

介绍 vs 认识

介绍 is the act of introducing; 认识 is the state of knowing someone.

介绍 vs 说明

介绍 is an overview; 说明 is a detailed explanation.

मुहावरे और अभिव्यक्तियाँ

आसानी से भ्रमित होने वाले

介绍 vs

वाक्य संरचनाएँ

इसे कैसे इस्तेमाल करें

ambiguity

Can mean both 'introduce' and 'recommend' depending on context.

politeness

Adding '一下' is key for natural speech.

सामान्य गलतियाँ

Using '介绍' without '给' when there is a recipient.
Forgetting '一下' in spoken conversation, making it sound too blunt.
Confusing '介绍' (introduce) with '认识' (know/meet).
Using '介绍' for 'bringing in' (use '引进' instead).
Incorrect word order: putting the recipient after the verb.

सुझाव

The 'Give' Rule

Always remember to use '给' (gěi) when introducing something to someone. The structure is 'A 给 B 介绍 C'. This is the most common mistake for English speakers.

Be Polite

Always add '一下' (yīxià) after '介绍' in social settings. It makes you sound much more polite and less like you are giving an order.

Formal Introductions

In business, use '向' (xiàng) instead of '给'. It sounds more professional. For example, '向大家介绍一下我们的新经理' (Introduce our new manager to everyone).

Self-Intro

Memorize the phrase '自我介绍' (zìwǒ jièshào). You will need it in almost every new social or professional situation you encounter in China.

Hierarchy Matters

When introducing two people, introduce the person of lower status to the person of higher status first. This is a key part of Chinese etiquette.

Clear Titles

In written reports, use '介绍' as a heading for background sections. For example, '项目介绍' (Project Introduction) is a standard section title.

Key Signal

When you hear '我来介绍一下,' stop and listen carefully. The next few words will tell you who or what is being discussed.

Use Titles

When introducing someone, always include their title (like 'Manager' or 'Teacher'). It shows you understand Chinese social structures.

Context is King

Pay attention to whether '介绍' is being used as a verb (to introduce) or a noun (an introduction). The sentence structure will tell you.

Introduce vs. Recommend

If you really like something and want someone to try it, use '推荐' (tuījiàn). If you are just giving information, '介绍' is enough.

याद करें

शब्द की उत्पत्ति

सांस्कृतिक संदर्भ

Always use professional titles (e.g., Manager Wang) during introductions.

Exchange business cards (名片) immediately after the introduction.

Introduce the junior to the senior.

असल ज़िंदगी में अभ्यास करें

वास्तविक संदर्भ

बातचीत की शुरुआत

"你可以介绍一下你自己吗？"

"你能给我介绍一个好餐馆吗？"

"请介绍一下你们公司的产品。"

"我想给你介绍我的新同事。"

"介绍一下，这位是张先生。"

डायरी विषय

写一段话介绍你的家乡。

写一段自我介绍，准备面试用。

介绍你最喜欢的一本书。

描述一次你给别人做介绍的经历。

介绍一个你最敬佩的人。

अक्सर पूछे जाने वाले सवाल

10 सवाल

Yes, it can mean 'introduction' or 'description.' For example, '产品介绍' means 'product description.' It is very common in both spoken and written Chinese.

'给' is more common in daily conversation, while '向' is more formal. Both are used to indicate the person receiving the introduction. In a business meeting, '向' is preferred.

No, it's used whenever you meet someone for the first time, such as in a new class, a party, or a club. It's a basic social skill. It literally means 'self-introduction.'

You should say '他把他老板介绍给我' or '他向我介绍了他老板.' Remember the prepositional phrase comes before the verb '介绍' in Chinese.

Yes, you can say '介绍一部电影.' This means you are telling someone about the movie, its plot, and why they might like it. It's similar to 'recommending' it.

In a wedding context, '介绍人' is the matchmaker or the person who first introduced the couple. They often have a special place of honor at the wedding ceremony.

It's not grammatically required, but it's highly recommended in spoken Chinese. Without it, the sentence can sound too direct or even rude. It softens the tone significantly.

Not usually. For bringing in new technology or foreign concepts, '引进' (yǐnjìn) is more appropriate. '介绍' is more about the communication of information about those things.

The term is '介绍信' (jièshàoxìn). This is a formal letter used to introduce someone to a new organization or individual, often for business or academic purposes.

It means a 'brief introduction.' You use this when you don't have much time or when you just want to give the most important points about a topic or person.