名词

1. There are plans for the expansion of our school building.
有扩大我们学校建筑的计划。

2. The suburbs are an expansion of cities.
郊区是城市的延伸。

3. The new factory is large, to allow room for expansion.
新工厂很大，有地方可以扩展。

4. Heat causes the expansion of gases.
热使气体膨胀。

1. 扩充：20世纪60年代以来,发展中国家高等教育面临着扩充(expansion)、多样化(differentiation)和知识革命(knowledge revolution)这三大挑战. 这些挑战改变了高等教育及其存在的环境,对发展中国家产生了强有力的影响,

2. expansion：exp; 膨胀

3. expansion：expan; 合拢

1. 扩张;扩充;扩大;发展
Expansion is the process of becoming greater in size, number, or amount.

e.g. ...the rapid expansion of private health insurance.
个人健康保险的迅速发展
e.g. ...a new period of economic expansion...
经济发展的新时期

noun

1. the act of increasing (something) in size or volume or quantity or scope

Synonym: enlargement

2. adding information or detail

Synonym: expanding upon

3. a discussion that provides additional information

Synonym: enlargementelaboration

4. a function expressed as a sum or product of terms

e.g. the expansion of (a b)^2 is a^2 2ab b^2