如何使用 "improv" 造句

1. I grew up in the improv world .
我在即兴表演的世界里长大。
2. As an actor , do you get to suggest bits of dialogue or do some improv ?
作为演员,你会主动商榷台词或做些即兴表演吗?
3. This improv fashion show was cancelled at the last minute by the congress secretariat .
这场即兴的时装秀在最后的时刻被人代会秘书处否决了。