scratch your head
成語所屬單字scratch
scratch your head — 慣用語
1. to think hard about something because you find it confusing, surprising, or diff
1.慣用語
釋義
感到困惑；摸不著頭腦
to think hard about something because you find it confusing, surprising, or difficult to understand
例句
The teacher scratched her head over Ella's unusual answer to the maths problem.
Scientists are scratching their heads over why the birds changed their migration route.