scratch your head (over something)
成語所屬單字head
scratch your head (over something) — 慣用語
1. To think hard to find an answer to something.
1.慣用語
釋義
絞盡腦汁
To think hard to find an answer to something.
例句
Scientists are scratching their heads over the new data.
I've been scratching my head over this puzzle all day.