pour/throw cold water on
US /pɔr/θroʊ koʊld ˈwɔtər ɑn/
UK /pɔr/θroʊ koʊld ˈwɔtər ɑn/

1.
潑冷水, 打擊積極性
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.
她對她的新商業想法很興奮,但她的父母潑了冷水。
•
Don't throw cold water on his plans; he's really trying hard.
不要潑冷水在他的計劃上;他真的很努力。