Drink some cold water if possible.

要是有必要的话，可以喝些冰水。

youdao

To refresh the rice, run it under some cold water.

为了保持米饭新鲜，将它们放在一些冷水中。

youdao

Go to restroom and put some cold water on your face.

到洗手间去，在脸上敷些冷水。

youdao

For example, you want to buy a new car, because the old one has some problems But your wife throws cold water on the idea, because a computer costs too much.

VOA: special.2009.05.10

Facebook's final pricing comes amid recent financial disclosures that threw some cold water on the ballyhooed IPO.

WSJ: Facebook Prices Its IPO at $38

Here to throw some cold water on the fiery Mr. Smith - uh, Mr. Walz, who's about to go to Washington.

NPR: Troop-Surge Opponents Mull Options

But Mr. Cuomo threw some cold water on their efforts.

WSJ: Cuomo Kills Buzz Over Medical Pot