Expansion
01
扩张, 扩展
an increase in the amount, size, importance, or degree of something
例子
The expansion of the highway will reduce traffic congestion.
高速公路的扩建将减少交通拥堵。
02
a discussion or explanation that adds further information
03
a mathematical expression written as a sum or product of terms
词汇树
expansionism
expansion
expand
