英音 /ˈɪm.prɒv/

美音 /ˈɪm.prɑːv/

[ noun C or U ] a performance, for example of comedy or acting, that is improvised (= invented as it is done rather than using words or music written and practised in advance, an abbreviation for ‘improvisation’)
[可数或不可数名词] 即兴表演；即兴乐；即兴剧（improvisation的缩写）

例句：

The show mixes scripted satire with improv. 该节目将准备好剧本的讽刺内容与即兴表演混合在一起。

I saw him do an improv at a comedy festival. 我在喜剧节上看过他的即兴剧。

She started out with an improv theatre group. 她的演艺生涯从一个即兴剧团开始。

In small improv troupes, comedians are given ridiculous scenarios to act out on the spot. 在一些小型即兴表演剧团里，喜剧演员们经常会带来现场的滑稽情景表演。

I learned this magical phrase years ago while taking a comedy improv course. 我在几年前上即兴喜剧课的时候知道了这个带有魔力的短语。