投鼠忌器 [ㄊㄡˊ ㄕㄨˇ ㄐㄧˋ ㄑㄧˋ; tou2 shu3 ji4 qi4] lit. to refrain from shooting at the rat for fear of breaking the vases (idiom) to not act against an evil so as to prevent harm to innocents ◄ ►
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