to say or do something that shows someone that their beliefs are false, or that what they want to happen will not happen

He was so happy about marrying Maria Luisa, I couldn't burst his bubble. 他特别开心能娶到玛丽亚·路易莎，我无法泼他冷水。

I hate to burst your bubble, but that's never going to happen. 我不得不告诉你实话，但那是永远不会发生的。| 我并不是想要打击你，但你的梦想绝不可能实现。