不ㄅㄨˋ得ㄉㄜˊ已ㄧˇbùdéyǐ

  1. 沒辦法；只能這樣做。例 「實在不得已，請原諒」。

英to act against one's will, to have no alternative but to, to have to, to have no choice, must
法à contrecoeur