expand ：to become larger in size, number, or amount, or to make something become larger
(使)擴大；增加 同義詞：increase
The computer industry has expanded greatly over the last decade.
計算機行業在過去十年間大大地發展起來。
expand knowledge of foreign countries
增加對外國的了解
v. 擴展;擴大;(使)膨脹:
expand domestic demand 擴大內需
When you heat a metal， it expands金屬遇熱膨脹。
Water expands as it freezes.
水結冰時會膨脹。
派生詞：
expansion n.擴大，擴張，擴充
The rapid expansion of cities can cause social and economic problems.
城市規模的迅速擴大會帶來各種社會和經濟問題。