pour/throw cold water on

US /pɔr/θroʊ koʊld ˈwɔtər ɑn/
UK /pɔr/θroʊ koʊld ˈwɔtər ɑn/
"pour/throw cold water on" picture
1.

泼冷水, 打击积极性

to say or do something that discourages someone or makes them feel less enthusiastic about something

:
She was excited about her new business idea, but her parents poured cold water on it.
她对她的新商业想法很兴奋,但她的父母泼了冷水
Don't throw cold water on his plans; he's really trying hard.
不要泼冷水在他的计划上;他真的很努力。