时间: 2025-04-26 18:06:32
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:2025-04-26 18:06:32
词源分析:expand源自拉丁语“expandere”,由前缀“ex-”(意为“向外”)和动词“pandere”(意为“展开”)结合而成。字面意思是“向外展开”。
历史背景:该词的首次使用可以追溯到14世纪,常用于描述物体的扩展或数量的增加。
课本:在**的教材中,expand常出现在初中和高中英语课本中。在国际教材,如牛津英语和美国中学英语教科书中,通常在初中阶段介绍该词。
正式与非正式语境:
特殊场合:
The balloon will expand when you blow air into it.
(气球在你向里面吹气时会膨胀。)
The team decided to expand their research to include more variables.
(团队决定扩大研究范围以包含更多变量。)
Our company aims to expand operations into international markets next year.
(我们的公司计划明年在国际市场上扩大运营。)
The author expands on his theory in the latest chapter of the book.
(作者在书的最新章节中详细阐述了他的理论。)
During the summer, the population of the town tends to expand significantly.
(在夏季,这个城镇的人口往往会显著增加。)
同义词:
反义词:
通过以上的学*与分析,可以全面理解和掌握“expand”这个单词的含义、用法及相关知识。
[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。