expansion

• n. 膨胀；阐述；扩张物

词态变化

英文词源

expansion (n.)

1610s, "anything spread out;" 1640s, "act of expanding," from French expansion, from Late Latin expansionem (nominative expansio) "a spreading out," noun of action from past participle stem of Latin expandere "to spread out" (see expand).

双语例句

1. This revolutionary expansion required energetic nation-building policies.

这种跨越式的扩张需要有活力的国家建设政策。

来自柯林斯例句

2. The memory expansion cards are useful adjuncts to the computer.

内存扩充卡是计算机很有用的附件。

来自《权威词典》

3. the expansion and contraction of the metal

金属的膨胀与收缩

来自《权威词典》

4. a period of rapid economic expansion

经济迅猛发展期

来自《权威词典》

5. We mustn't attempt unrestricted expansion regardless if it is within our capacity.

我们不能不顾自己的能力企图无限制地发展.

来自《简明英汉词典》