泼冷水的英文：
throw a damp over
throw a wet blanket on
throw cold water on

参考例句：

To throw a wet Blanket over;To pool the cold water on the enthusiasm of;To dampen the spirit of
泼冷水

strike a damp over
给￥泼冷水|使沮丧

cast a damp over/upo
向…泼冷水，使…沮丧

Don't chill their enthusiasm.
不要给他们的热情泼冷水。

Pour/throw cold water on sth ;be discouraging or unenthusiastic about sth
对某事物泼冷水(泄气或不热心)

throw是什么意思：
v. 投，掷，抛，扔；使突然陷入；掷（骰子）；摔倒
n. 投掷；投距，射程

They throw into the room.
他们冲进房内。

To throw into disorder.
弄乱,使凌乱

The act of throwing or a technique used to throw an opponent in wrestling.
摔交的动作，摔交的技巧在摔跤中将对手摔倒的动作或技术

damp是什么意思：
adj. 潮湿的；消沉的
n. 潮湿，湿气；矿井瓦斯，有毒气体；消沉，失望
v. 使潮湿，变潮湿；使沮丧；抑制，使减弱；封（火）；减幅，阻尼

The dampness of the climate decayed the books.
气候潮湿，把书都霉坏了。

The air of this room is impregnated with damp.
这房间充满着湿气。

The damp has started the timbers.
潮湿已使梁木弯翘了。

over是什么意思：
adv. （倒）下；从一边到另一边；越过；再；结束
prep. 在…之上；越过；在…的另一边（对面）；由于；从一边到另一边
adj. 过去的；结束的；外面的；上面的
v. 越过

chew over; think over
考虑;详细讨论

I have failed over and over and over again in my life.
我一生中失败了一次又一次。

"Over shoes, over Boots"
一不做,二不休