如果某人做了一些事情或说了一些话，让其他人无法继续尽兴下去，就可以用搭配 “wet blanket” 来形容这个人是 “扫兴的人”。

例句

Let's go to the party – don't be a wet blanket!

一起去那个聚会吧！别扫大家的兴。

He's such a wet blanket. He doesn't make jokes, and takes everything way too seriously!

他真是个扫兴的人。既不喜欢讲笑话，对待所有事情又过于严肃。

Why did you have to invite her for dinner? She's such a wet blanket and always says things that kill the mood!

你为什么要邀请她来吃晚饭？她最喜欢扫大家的兴，总是讲一些大煞风景的话。