时间: 2025-06-14 12:55:16
美: [ɪk'spænd]
英: [ɪk'spænd; ek-]
vt. 扩张；使膨胀；详述
vi. 发展；张开，展开
最后更新时间:2025-06-14 12:55:16
正式与非正式语境：
特殊场合：在科学领域，常用于描述物理现象，如热膨胀：“As temperature increases, the volume of gas tends to expand.”（随着温度升高，气体的体积往往会膨胀。）
The universe is known to expand over time.
（宇宙在时间上被认为是扩展的。）
She decided to expand her business to include online sales.
（她决定扩展她的业务，以包括在线销售。）
To expand your vocabulary, you should read more books.
（为了扩展你的词汇量，你应该多读书。）
The balloon will expand if you blow air into it.
（如果你往气球里吹气，气球会膨胀。）
The government aims to expand access to education for all citizens.
（政府旨在扩大所有公民接受教育的机会。）
同义词：
反义词：
通过以上分析，可以更全面地理解和运用“expand”这个单词。
[V-T/V-I] If something expands or is expanded, it becomes larger. 扩大; 膨胀
例：Engineers noticed that the pipes were not expanding as expected.工程师们注意到管子并未像预期的那样膨胀。
例：We have to expand the size of the image.我们不得不扩大图像的尺寸。
[[商业]] If something such as a business, organization, or service expands, or if you expand it, it becomes bigger and includes more people, goods, or activities. 使…发展; 发展
例：The popular ceramics industry expanded toward the middle of the 19th century.大众陶瓷业在19世纪中叶得到了发展。