Word · Frequency #2124
expand
扩大;扩充;膨胀
to become larger, or to make something larger in size, amount, or degree
- 1.
To change (something) from a smaller form or size to a larger one; to spread out or lay open.
将(某物)从较小的形式或尺寸变为较大的;展开或打开。
- 2.
extend in one or more directions
向一个或多个方向延伸
- 3.
To increase the extent, number, volume or scope of (something).
增加(某物)的范围、数量、体积或规模
- 4.
become larger in size or volume or quantity
大小、体积或数量变大
- 5.
To express (something) at length and/or in detail.
详细表达(某事)
- 6.
make bigger or wider in size, volume, or quantity
使大小、体积或数量变大或变宽
- 7.
To rewrite (an expression) as a longer, yet equivalent, sum of terms.
将(表达式)重写为更长但等效的项之和
- 8.
To become, by rewriting, a longer, yet equivalent, sum of terms.
通过重写变为更长但等效的项之和。
- 9.
To multiply both the numerator and the denominator of a fraction by the same (non-zero) number (which yields a fraction of equal value).
将分数的分子和分母同时乘以相同的(非零)数(产生等值分数)。
- 10.
To change or grow from smaller to larger in form, number, or size.
从小到大改变或增长形式、数量或大小。
- 11.
To increase in extent, number, volume or scope.
在范围、数量、体积或规模上增加
- 12.
To speak or write at length or in detail.
详细地说或写。
- 13.
To feel generous or optimistic.
感到慷慨或乐观
- 14.
In a hierarchical list (such as a directory tree or table of contents), to show the subentries of (an entry).
在层级列表中显示(条目)的子条目。
张开;展开;详述;详细说明;解压缩;展开;将(某物)从较小的形式或尺寸变为较大的;展开或打开。;向一个或多个方向延伸
In use
The company plans to expand its business into Asia next year.
When heated, metal expands more than glass.
We need to expand the kitchen to make room for a larger table.
The dough expands
his business expanded rapidly
expand the house by adding another wing
expand + noun + into + noun
表示将某物扩大或发展成为另一物。
The company expanded its small store into a large supermarket.
该公司将其小商店扩展成一家大型超市。
expand on/upon + noun
用于请求更详细的解释或描述。
Connections
Collocations
- expand business
- 扩大业务
- The company plans to expand business into new markets.该公司计划将业务扩展到新市场。
- expand market
- 拓展市场
- We need to expand our market share in Asia.我们需要扩大在亚洲的市场份额。
- expand knowledge
- 扩展知识
- Reading widely helps expand your knowledge.广泛阅读有助于扩展你的知识。
- expand horizons
- 开阔眼界
- Traveling can expand your horizons.旅行可以开阔你的眼界。
- expand vocabulary
- 扩大词汇量
- He uses flashcards to expand his vocabulary.他用闪卡来扩大词汇量。
- expand one's mind
Learner notes
Memory Tip
expand中的'pand'谐音'胖的',向外变胖即扩大。
Context & Register
动词 expand 可用于多种语境,如商业、科技、物理等。既可用于正式场合,也可用于日常交流,属于中性偏正式的语体。
Pronunciation & Spelling
All listed words rhyme with 'expand' (ending /ænd/). Beware of lookalikes like 'panda' (/pændə/) or 'expound' (/ɪkspaʊnd/) which sound different.
High-value vocabulary
该词属于 Oxford 核心词汇,值得优先掌握常见搭配和句型。
Usage priority
Collins 词频等级为 3,建议结合例句记忆,而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.