泼冷水

泼冷水 [pō lěng shuǐ]

1. ■ pour [throw] cold water on; cast a damp over; dampen the enthusiasm [spirits] of; discourage; put a damper on:

他们对他的想法泼冷水时， 他并不泄气。 He wasn't discouraged when they threw cold water on his ideas.

我们不能给他们的热情泼冷水。 We must not pour cold water on their enthusiasm.