heaven knows
成語所屬單字heaven
heaven knows — 慣用語
1. Used to emphasise that you do not know something, or to emphasise the truth of a
1.慣用語
釋義
天知道；誰知道；老天作證
Used to emphasise that you do not know something, or to emphasise the truth of a statement.
例句
Heaven knows where Ritu left her keys — we have looked everywhere.
Heaven knows I have tried my best to help the team succeed.