n.
扩大,扩张,扩展,膨胀 action of expanding; state of being expanded
扩张物,膨胀物 sth which has been expanded
同义词
n. elaboration，enlargement，expanding upon
反义词
n. contraction
参考例句
1. Already in use and expansion screen display program.
已经使用与扩展屏幕显示程序。
2. Similarly, 75 years after its initial discovery, the expansion of the universe is still widely misunderstood.
同样地，距离最初的发现已经75年了，宇宙的膨胀还是广遭误解。
3. The capitalized personality of knowledge information and the value expansion of talents in exchange of capital shows the impact of the talent right on economy.
知识信息权属的人格资本化，以及人才在与资本互动关系中交换价值的扩大，凸现了人才主权对经济的影响。
例句
1.N-VAR Expansion is the process of becoming greater in size, number, or amount. 扩张; 发展
例：...the rapid expansion of private health insurance.
私人健康保险的快速发展。
常见用法
用作名词
Metals undergo expansion when heated.
金属加热时会膨胀。
The thermostat is based on the fact that different metals have different coefficients of expansion.
恒温器是以不同的金属有不同的膨胀系数这一事实为根据的。
His economic policies paved the way for industrial expansion.
他的经济政策为工业的扩展铺平了道路。
The time has come for the firm to consolidate after several years of rapid expansion.
公司经过几年的迅速发展之後，该整顿一下了。
This book is an expansion of the play he wrote before.
这本书是他以前写的剧本的扩充。