for the life of you
成語所屬單字life
for the life of you — 慣用語
1. However hard you try; used to emphasize that you cannot do something.
1.慣用語
釋義
無論如何
However hard you try; used to emphasize that you cannot do something.
例句
I cannot for the life of me remember her name.
For the life of me, I can't solve this puzzle.