throw a damp over
throw a wet blanket on
throw cold water on
eg
Don't pour cold water on the idea.
不要对这个主意泼冷水.
Don't chill their enthusiasm.
不要对他们的热情泼冷水.
He often dashes cold water on my suggestions.
他常常对我提出的建议泼冷水.
He came and at once threw a wet blanket over me.
他来了马上就对我泼冷水.
Honestly!You're always throwing cold water on me.
说实在的!你老是给我泼冷水.
Honestly!You are always throwing cold water on me.
说实在的!你老是给我泼冷水.
The chairman poured cold water onto all our suggestions for fund raising.
董事长对我们筹集资金的所有建议都泼冷水.
I felt very discouraged when he threw cold water on my idea.
他对我的想法泼冷水,使我很扫兴.
We planned to start a florist shop,but Father threw cold water on the idea.
我们打算开个花店,可是父亲却给我们泼冷水.
Don't pour cold water on the idea:it may be just what we need.
不要给这个想法泼冷水,它可能就是我们所需要的.