ˇㄧㄢˇyǎnㄏㄨㄢˊhuánㄧㄢˇyǎn

  1. 比喻採取對方使用手段報復對方一向心胸狹窄如果對不起一定以眼還眼以牙還牙。」

an eye for an eye (idiom)​; fig. to use the enemy's methods against him, to give sb a taste of his own medicine
oeil pour oeil, appliquer la loi du Talion