what does… know?
成語所屬單字know
what does… know? — 慣用語
1. Used to say that someone knows nothing about the subject.
1.慣用語
釋義
……懂什麼
Used to say that someone knows nothing about the subject.
例句
What does he know about cooking? He can't even boil an egg.
What does she know about cars? She's never driven one.