throw the baby out with the bathwater
過度舍棄，拋棄中間或有價值的東西，只保留不值得或無用的東西
口語·表達過度舍棄
英文釋義
to get rid of something valuable or important while trying to eliminate something undesirable
例句
Don't throw the baby out with the bathwater by deleting all your old files.
典故來源
源自德國民間諺語，指倒洗澡水時連嬰兒一起倒掉，比喻過度舍棄。