cross my heart (and hope to die)
成語所屬單字die
cross my heart (and hope to die) — 慣用語
1. used by children or in informal situations to emphasize that you are telling the
1.慣用語
釋義
我發誓（所言屬實）
used by children or in informal situations to emphasize that you are telling the absolute truth.
例句
I did not take your notebook, cross my heart and hope to die.
Carlos promised he would keep the secret, cross his heart.