激濁揚清 [ㄐㄧ ㄓㄨㄛˊ ㄧㄤˊ ㄑㄧㄥ; ji1 zhuo2 yang2 qing1] lit. drain away filth and bring in fresh water (idiom); fig. dispel evil and usher in good eliminate vice and exalt virtue ◄ ►