◎兩敗俱傷liǎngbài-jùshāng
[internecine;both parties be weakened by mutual homicide;both being defeated and wounded; both sides suffer; cut one another's throat; neither side gains] 爭斗的雙方都受到損失
倘若大人再要回護他三人，將來(lái)一定兩敗俱傷，于大人反為無(wú)益?！?/span>清·李寶嘉《官場(chǎng)現形記》