032_To rain on someone's parade~~

32 Daily Easy English Expression PODCAST—To rain on someone's parade~~
中譯: 潑人冷水

A: What’s that? A present?
B: Diamond earrings. They’re for Sue. 
A: Wow. Uh…I don’t want to rain on your parade, but Sue just got engaged.
B: What? Engaged? She’s gonna get married? What???