act on,act as,act

act on,act as,act Act “act act as work as\ act on\ serve as 表充当、担任, act as 和act 作 扮演时的区别 act as 与act for的用法区别是啥 act是什么意思、? act commercially ACT是什么? 英文 Act Let's Act 是用act at ,act in还是 act on（the play)