give the game away

成語所屬單字game

give the game away — 慣用語

1. to accidentally reveal a secret or something that was meant to be kept hidden

1.慣用語
釋義

露餡;洩漏秘密

to accidentally reveal a secret or something that was meant to be kept hidden

例句

Sora smiled when Bao walked in, and his expression gave the game away.