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B2 verb 8 min read

扩充

kuochong
Examples 扩充 in 30 Seconds
Explanation 扩充 in your Level:
At the A1 level, the word '扩充' (kuòchōng) might be a bit difficult because it is quite formal. However, you can think of it as a special way to say 'make more' or 'add more.' It is usually used for things like your 'vocabulary' (the words you know). If you learn 10 new words, you are 'expanding' (扩充) your vocabulary. Even at this early stage, knowing that '扩' means 'big' or 'expand' can help you recognize many other words later on. Just remember: when you add more things to a group to make it better, you can use this word. It's like adding more toys to a toy box until it's full. In very simple terms, it means 'to add and fill up.' You won't use it every day, but you might see it in your textbook when the teacher talks about learning more words.
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For A2 learners, '扩充' (kuòchōng) is an excellent word to start using when you want to sound a bit more advanced than just using '增加' (zēngjiā - to increase). At this level, you are learning to talk about your studies and hobbies. You might say '我需要扩充我的词汇量' (I need to expand my vocabulary). This sounds much better than '我要多学词汇.' The word '扩充' suggests that you are intentionally building something up. You can also use it for simple things like adding more photos to an album or more songs to a playlist. It's about taking a collection and making it bigger by adding more items. It's a 'transitive verb,' which means you usually put the 'what' right after it: 扩充 + [something]. Try using it in your next writing assignment about your goals!
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At the B1 level, you should begin to distinguish '扩充' (kuòchōng) from other similar verbs like '扩大' (kuòdà). While '扩大' is often about physical size or influence, '扩充' is specifically about increasing capacity or the number of items in a set. For example, if a school builds a new classroom, they are '扩大' (enlarging) the campus, but if they hire five new teachers, they are '扩充' (expanding) the faculty. This distinction is important for expressing precise ideas. You will often see this word in news snippets or read it in slightly more complex articles about technology (like expanding storage) or education. It's a key word for describing planned growth. When you write about your career or your community, '扩充' is the perfect word to describe adding resources or people to a project.
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At the B2 level, '扩充' (kuòchōng) is a core vocabulary item that you should be able to use fluently in both speech and writing. You are expected to understand its nuances in professional and academic contexts. It often appears in discussions about corporate strategy (扩充业务), government policy (扩充内需), and technical specifications (扩充内存). You should also be aware of its collocations, such as '扩充编制' (expanding the staff/establishment) and '扩充军备' (expanding armaments). At this level, you can use '扩充' to describe the development of abstract ideas, like '扩充论点' (expanding an argument) in an essay. It signifies a level of precision that differentiates an intermediate learner from an advanced one. You should feel comfortable using it to describe any systematic increase in quantity or capacity.
For C1 learners, '扩充' (kuòchōng) is a tool for professional-grade precision. You should be able to use it to discuss complex socioeconomic trends or technical architectures. For instance, you might analyze how a company '扩充其全球供应链' (expands its global supply chain) or how a philosopher '扩充了传统理论的内涵' (expanded the connotation of traditional theory). At this level, you should also be able to contrast '扩充' with even more specific terms like '增补' (supplement) or '拓展' (broaden into new fields). Your usage should reflect an understanding that '扩充' implies a filling-out of a structure. In a formal debate or a high-level business proposal, using '扩充' correctly shows that you understand the mechanics of growth and the formal registers of the Chinese language. It is about the qualitative impact of quantitative increases.
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At the C2 level, '扩充' (kuòchōng) is used with effortless precision in the most formal and nuanced contexts. You might use it in legal writing to describe the '扩充解释' (expanded interpretation) of a statute, or in scientific discourse to discuss the '扩充数据集' (expanded dataset) required for a simulation. You understand that the word carries a historical weight, originating from the idea of making something both wide and full. You can use it metaphorically to describe the '扩充' of a person's spiritual or intellectual capacity. At this stage, the word is not just a verb but a part of a sophisticated vocabulary that allows you to describe growth with surgical accuracy. You can distinguish between '扩充' as a deliberate act of policy and '扩张' as a potentially aggressive or natural expansion, choosing the former to imply constructive, planned augmentation.
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Examples

扩充 in 30 Seconds

  • 扩充 (kuòchōng) is a formal verb meaning to expand or augment capacity, resources, or content.
  • Commonly used with abstract nouns like 'vocabulary,' 'knowledge,' and 'influence,' or concrete nouns like 'staff' and 'equipment.'
  • It differs from '扩大' by emphasizing the addition of items to fill a space or system.
  • Essential for professional, academic, and technical communication in Chinese at the B2 level and above.

The Chinese verb 扩充 (kuòchōng) is a sophisticated term primarily used to describe the process of expanding, enlarging, or augmenting something to increase its capacity, volume, or content. It is composed of two characters: 扩 (kuò), meaning to expand or broaden, and 充 (chōng), meaning to fill or satisfy. Together, they convey a sense of not just making something bigger in physical size, but filling it out to make it more substantial or comprehensive. This word is a staple in formal discussions regarding resources, knowledge, personnel, and infrastructure. Unlike the more general term 增加 (zēngjiā), which simply means to increase, 扩充 implies a structural or qualitative enhancement. It is most frequently applied to abstract concepts like vocabulary, databases, and influence, as well as concrete entities like a military force or a library's collection.

Academic Context
In academic writing, 扩充 is used when discussing the expansion of a research scope or the addition of new data to a study. For example, one might 扩充论点 (expand an argument) to provide more depth.
Business and Management
In a corporate setting, managers often talk about 扩充编制 (expanding the staff/establishment) or 扩充业务 (expanding business operations) to capture more market share.
Technology and Systems
IT professionals use 扩充 when referring to increasing memory capacity (扩充内存) or adding new features to a software system to enhance its functionality.

为了适应市场需求，公司决定扩充生产线。(To meet market demand, the company decided to expand its production lines.)

学生应该通过广泛阅读来扩充词汇量。(Students should expand their vocabulary through extensive reading.)

When you use 扩充, you are signaling a deliberate effort to strengthen or broaden a foundation. It is rarely used for negative growth or accidental increases. Instead, it reflects a planned, strategic augmentation. For instance, a government might 扩充军备 (expand military armaments) as part of a national defense strategy. The nuances of this word are vital for B2 learners who are transitioning from basic verbs to more precise, professional vocabulary. Understanding the collocation patterns—such as 扩充内容 (expanding content) or 扩充影响 (expanding influence)—will help you sound more natural in formal Chinese environments.

我们需要扩充数据库以存储更多用户信息。(We need to expand the database to store more user information.)

图书馆计划在明年扩充其藏书量。(The library plans to expand its collection next year.)

该大学正在扩充其师资力量。(The university is expanding its faculty resources.)

Using 扩充 (kuòchōng) correctly requires an understanding of its typical objects. It is almost always a transitive verb, meaning it needs an object. The most common objects are nouns related to capacity, resources, or information. In a sentence, 扩充 usually follows the subject (the entity doing the expanding) and precedes the object (what is being expanded). It can be used in various tenses and moods, often appearing with auxiliary verbs like 需要 (xūyào - need), 计划 (jìhuà - plan), or 决定 (juédìng - decide).

Subject + 扩充 + Object
This is the standard active voice structure. Example: 学校扩充了实验室。 (The school expanded the laboratory.)
扩充 + Noun Phrase
Used when the verb acts as a gerund or part of a purpose clause. Example: 为了扩充知识... (In order to expand knowledge...)
Passive Construction with 被
While less common, it can be used passively. Example: 编制被扩充了。 (The establishment was expanded.)

如果你想提高写作水平，首先要扩充词汇量。(If you want to improve your writing level, you must first expand your vocabulary.)

In professional writing, 扩充 often pairs with abstract nouns to indicate growth in scope. For example, 扩充内涵 (expanding the connotation) or 扩充定义 (expanding a definition). It is also frequently found in the context of physical space that serves a function, like 扩充店面 (expanding a storefront) or 扩充仓库 (expanding a warehouse). Note that 扩充 is rarely used for people's physical size (like getting taller) or for simple numbers (like increasing a price); for those, you would use 长高 or 提高 respectively.

这家公司正计划扩充其在海外的市场份额。(The company is planning to expand its market share overseas.)

随着业务的增长，我们需要扩充客服团队。(As the business grows, we need to expand the customer service team.)

他们通过扩充产品线来吸引更多不同类型的客户。(They attract more different types of customers by expanding their product line.)

为了让这篇文章更有说服力，你需要扩充一些具体的案例。(To make this article more persuasive, you need to expand on some specific examples.)

You will encounter 扩充 (kuòchōng) in environments that prioritize growth, development, and formal reporting. It is a 'serious' word, so you are more likely to hear it in a news broadcast than at a casual dinner party. However, in the context of self-improvement or hobbies, it is very common. For example, a language teacher will frequently tell students to 扩充词汇量. A tech enthusiast might talk about 扩充电脑内存 (expanding computer memory). In these contexts, it feels natural and necessary.

News and Media
Broadcasters often use it when discussing government policies, such as 扩充内需 (expanding domestic demand) or 扩充教育资源 (expanding educational resources).
Office and Workplace
In meetings, you'll hear it regarding strategy: 我们要扩充销售渠道 (We need to expand our sales channels).
Education and Self-Help
Books and lectures on personal growth often mention 扩充视野 (expanding one's horizons) or 扩充知识库 (expanding one's knowledge base).

新闻报道：政府计划扩充城市绿地面积。(News report: The government plans to expand the urban green space area.)

In a digital age, 扩充 is also ubiquitous in the gaming and software world. An 'Expansion Pack' for a video game is called an 扩充包 (kuòchōng bāo). When a cloud storage service offers more space, they might use the term 扩充空间. This makes the word highly relevant for anyone interacting with Chinese technology or media. It carries a positive connotation of progress and abundance. When a city 扩充交通网络 (expands its transportation network), it is seen as a sign of economic health and modernization.

这个游戏的扩充内容非常丰富。(The expansion content of this game is very rich.)

他建议通过扩充社交圈来寻找更多机会。(He suggested finding more opportunities by expanding one's social circle.)

为了提高效率，我们需要扩充现有的服务器。(To improve efficiency, we need to expand existing servers.)

专家呼吁扩充职业教育的规模。(Experts call for expanding the scale of vocational education.)

While 扩充 (kuòchōng) is a versatile word, learners often confuse it with other 'expansion' words like 扩大 (kuòdà), 扩展 (kuòzhǎn), or 增加 (zēngjiā). The most common mistake is using 扩充 for simple physical enlargement. For example, you wouldn't say 扩充照片 (expand a photo) to mean zooming in; you would use 放大. Another mistake is using it for things that are naturally growing rather than being intentionally augmented by an external force.

Confusion with 扩大 (kuòdà)
扩大 focuses on area, scale, or influence (e.g., 扩大影响). 扩充 focuses on capacity and filling out content (e.g., 扩充内容). You can 'enlarge' (扩大) a gap, but you 'augment' (扩充) a team.
Confusion with 增加 (zēngjiā)
增加 is a general term for 'increase.' It can be used for numbers, prices, or amounts. 扩充 is more formal and implies adding to a collection or a system to make it more complete.
Misuse with People
You cannot 扩充 a person. You can only 扩充 a group of people (like a team or staff). Saying 他扩充了 to mean he got fat is incorrect and confusing.

错误：我们需要扩充价格。(Wrong: We need to 'augment' the price.) -> 正确：我们需要提高价格。(Correct: We need to raise the price.)

Another subtle mistake is using 扩充 when 扩展 is more appropriate. 扩展 often refers to outward expansion into new territory or fields (like 扩展业务), while 扩充 often implies an internal increase in capacity. If you are adding more books to a library, use 扩充. If you are opening new branches of that library in other cities, use 扩展. Paying attention to these nuances will significantly improve your HSK 5 or 6 performance and your general professional communication.

错误：他的肚子扩充了。(Wrong: His belly augmented.) -> 正确：他长胖了。(Correct: He got fat.)

错误：我们要扩充这个照片。(Wrong: We want to augment this photo.) -> 正确：我们要放大这个照片。(Correct: We want to enlarge this photo.)

注意：扩充通常用于“量”或“内容”，而不是单纯的“大小”。(Note: Kuochong is usually used for 'amount' or 'content', not just 'size'.)

Understanding the synonyms of 扩充 (kuòchōng) allows you to choose the most precise word for your context. While they all share a theme of 'getting bigger,' their specific applications vary significantly. Here is a breakdown of how 扩充 compares to its closest relatives.

扩大 (kuòdà)
Focuses on scale, area, or scope. Use 扩大 for physical areas (扩大面积) or abstract influence (扩大影响). 扩充 is more about adding specific items to a set.
扩展 (kuòzhǎn)
Often implies spreading out or reaching into new areas. Used frequently in business (扩展业务) or technology (扩展功能). It suggests development and evolution.
充实 (chōngshí)
Focuses on making something 'rich' or 'full.' If you 充实内容, you are making the content better and more complete, whereas 扩充内容 might just mean making it longer.
增补 (zēngbǔ)
Specifically means 'to add and supplement.' It is used for adding missing parts to a text or a collection (e.g., 增补条款 - add supplementary clauses).

虽然“扩大”和“扩充”意思相近，但“扩充”更强调内容的增加。(Although '扩大' and '扩充' are similar, '扩充' emphasizes the addition of content.)

In a professional setting, choosing 扩充 over 增加 shows a higher level of language proficiency. For instance, instead of saying 增加词汇, saying 扩充词汇量 sounds much more academic. Similarly, 扩充编制 is the standard term for hiring more people in a government or corporate structure, whereas 增加人手 is more colloquial. By mastering these distinctions, you can tailor your speech to suit the formality of the situation.

我们需要扩充现有的法律条款以覆盖新的情况。(We need to expand existing legal clauses to cover new situations.)

通过扩充数据库，系统性能得到了提升。(By expanding the database, system performance was improved.)

这本书的第二版扩充了三分之一的内容。(The second edition of this book has expanded its content by one-third.)

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Examples by Level

1

老师让我扩充词汇量。

The teacher told me to expand my vocabulary.

Subject + 扩充 + Noun

2

我要扩充我的书架。

I want to expand my bookshelf.

扩充 is used here for a physical object's capacity.

3

这个班级扩充了五个学生。

This class expanded by five students.

扩充 + Number + Noun

4

他在扩充他的玩具收藏。

He is expanding his toy collection.

Present continuous with '在'.

5

请扩充你的回答。

Please expand your answer.

Imperative use of 扩充.

6

我们需要扩充一点内容。

We need to expand the content a little bit.

扩充 + Noun

7

他想扩充他的朋友圈。

He wants to expand his circle of friends.

Abstract use of expansion.

8

图书馆扩充了很多新书。

The library expanded with many new books.

Verb + Object

1

为了扩充知识，他每天看报纸。

To expand his knowledge, he reads newspapers every day.

为了... (In order to...) purpose clause.

2

公司计划明年扩充规模。

The company plans to expand its scale next year.

计划 + 扩充 (Plan to expand).

3

你可以扩充一下你的句子吗？

Can you expand your sentence a bit?

Use of '一下' to soften the request.

4

我们的团队正在扩充人手。

Our team is currently expanding its manpower.

扩充 + Noun (manpower/staff).

5

电脑的内存可以扩充吗？

Can the computer's memory be expanded?

Interrogative sentence about technical capacity.

6

我们要扩充店里的商品种类。

We want to expand the types of goods in the store.

扩充 + Noun phrase.

7

这本书扩充了第二章的内容。

This book expanded the content of the second chapter.

扩充 + specific object.

8

学校决定扩充实验室的设备。

The school decided to expand the laboratory equipment.

决定 + 扩充 (Decided to expand).

1

通过这个项目，我们扩充了市场份额。

Through this project, we expanded our market share.

通过... (Through...) indicating method.

2

专家建议政府扩充公共交通网络。

Experts suggest the government expand the public transport network.

Suggest + Subject + 扩充.

3

这种方法可以有效扩充数据库的容量。

This method can effectively expand the capacity of the database.

有效 (effectively) modifying 扩充.

4

他利用业余时间扩充自己的兴趣爱好。

He uses his spare time to expand his hobbies.

利用... (Use/utilize...) structure.

5

论文的结论部分还需要进一步扩充。

The conclusion part of the thesis still needs further expansion.

进一步 (further) modifying 扩充.

6

这家超市正在扩充其生鲜区。

This supermarket is expanding its fresh food section.

正在... (currently...) progressive action.

7

扩充编制是公司目前的首要任务。

Expanding the staff is the company's top priority at the moment.

扩充 as a subject/gerund.

8

他们打算扩充原本的建筑计划。

They intend to expand the original construction plan.

原本的 (original) modifying 计划.

1

为了应对危机，银行扩充了资本金。

To cope with the crisis, the bank expanded its capital.

为了应对... (To cope with...) structure.

2

该法律的适用范围被进一步扩充了。

The scope of application of the law has been further expanded.

Passive voice with '被'.

3

我们需要扩充内需以拉动经济增长。

We need to expand domestic demand to drive economic growth.

Economic terminology: 扩充内需.

4

他在演讲中扩充了关于环保的论点。

He expanded on his arguments regarding environmental protection in his speech.

扩充论点 (expand arguments).

5

公司决定扩充其在亚洲的业务版图。

The company decided to expand its business footprint in Asia.

业务版图 (business footprint/territory).

6

通过兼并，该集团迅速扩充了实力。

Through mergers, the group rapidly expanded its strength.

兼并 (merger) as the method.

7

这种软件可以通过插件来扩充功能。

This software can expand its functions through plug-ins.

通过...来... (through... to...) structure.

8

政府拨出专款用于扩充医疗资源。

The government allocated special funds for expanding medical resources.

用于 (used for) + purpose.

1

作者在修订版中显著扩充了参考文献。

The author significantly expanded the references in the revised edition.

显著 (significantly) modifying 扩充.

2

该政策旨在扩充中等收入群体的规模。

The policy aims to expand the size of the middle-income group.

旨在 (aims to) + verb.

3

我们需要扩充思维的深度和广度。

We need to expand the depth and breadth of our thinking.

Abstract metaphorical use.

4

扩充军备往往会引发周边国家的担忧。

Expanding armaments often triggers concerns among neighboring countries.

Formal political context.

5

该项研究扩充了我们对宇宙起源的认知。

This research has expanded our understanding of the origin of the universe.

扩充认知 (expand cognition/understanding).

6

为了提高竞争力，企业必须不断扩充人才库。

To improve competitiveness, enterprises must constantly expand their talent pool.

人才库 (talent pool) as object.

7

该法案扩充了公民在数字领域的权利。

The bill expanded the rights of citizens in the digital realm.

Legal/rights context.

8

历史学家通过新发现的文献扩充了这段史实。

Historians expanded this historical fact through newly discovered documents.

Method + 扩充 + Object.

1

理论的扩充解释必须符合宪法的基本精神。

The expanded interpretation of the theory must conform to the basic spirit of the constitution.

扩充 as an adjective/modifier for 'interpretation'.

2

该框架协议为双方扩充合作领域奠定了基础。

The framework agreement laid the foundation for both parties to expand their areas of cooperation.

奠定基础 (lay the foundation) structure.

3

这种技术的应用将极大扩充人类的感知界限。

The application of this technology will greatly expand the boundaries of human perception.

感知界限 (boundaries of perception).

4

通过扩充内涵，该词汇在现代语境下有了新意。

By expanding its connotation, this vocabulary has acquired new meaning in a modern context.

扩充内涵 (expanding connotation).

5

在全球化背景下，国家主权的内涵在不断扩充。

In the context of globalization, the connotation of national sovereignty is constantly expanding.

Political science context.

6

实验证据扩充了该物理模型在极端条件下的适用性。

Experimental evidence expanded the applicability of the physical model under extreme conditions.

适用性 (applicability) as object.

7

扩充后的数据集为机器学习提供了更精准的训练素材。

The expanded dataset provides more precise training materials for machine learning.

扩充后 (after expansion) as a modifier.

8

这一发现从根本上扩充了我们对生命形式的定义。

This discovery fundamentally expanded our definition of life forms.

扩充定义 (expand definition).

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