[ækt]
vi. 行动,做事;(on)(机械/药物等)起作用;戏剧)扮演;(for)代理
vt. 装作
n. 动作,行为,(戏剧的)幕
来源于拉丁语动词ago, agere, egi, actus(行动)的过去分词词干-act-.
-act-行动 → act
例：
vi.
Think carefully before you act. 三思而后行。
She acts like a born leader. 她的举止象个天生的领导。
His mind acts quickly. 他的头脑很灵活。
This girl acted as our guide. 这女孩子充任我们的向导。
I’m acting for my boss Mr. Li in this case. 我替我的老板李先生处理这个案子。
John will act as a deputy for me during my absence. 我离开期间,约翰将代理我的职务。
n.
It was an illegal act and will lead to your arrest. 这是非法行为,足以将你送入监狱。
She has worked over the first act of the play. 她重写了剧本的第一幕。