v.t./i.動詞 (及物/不及物)表現;舉動He needs to act his age, he’s just being childish
n. (c./u.)名詞 (可數/不可數)行動;行為The act of giving presents is better than receiving them
n. (c./u.)名詞 (可數/不可數)法例The new act meant that we would now need a license to fish in the rivers
n. (c./u.)名詞 (可數/不可數)扮演;表演The third act was so sad that I cried
v.t./i.動詞 (及物/不及物)演出Daniel Radcliffe didn’t act well in the first Harry Potter films
n. (c./u.)名詞 (可數/不可數)表演The circus had a great opening act.