短語：
act as 充當；作為；擔任
act on ...的法案；對...起作用；按照...行事
act in 扮演；在...方面行動
例句：
We act as though we have godlike powers to decide our own destiny.
我們表現得好像我們擁有神的力量來決定自己的命運似的。
It will act as the follow-on to the current version of the software.
它將是此軟件現行版本的換代產品。