heaven forbid
成語所屬單字heaven
heaven forbid — 慣用語
1. Used to express a strong hope that something will not happen.
1.慣用語
釋義
但願不會；千萬別
Used to express a strong hope that something will not happen.
例句
Heaven forbid that such a tragedy should ever happen again.
What would we do if, heaven forbid, the hospital lost power?