keep a lid on something
成語所屬單字lid
keep a lid on something — 慣用語
1. to keep a situation under control and prevent it from getting worse; also used t
1.慣用語
釋義
控制；隱瞞
to keep a situation under control and prevent it from getting worse; also used to mean keeping something secret.
例句
The school managed to keep a lid on the bullying problem before the parents found out.
Ravindra tried to keep a lid on the surprise party plans until his sister's birthday.