ㄧㄤˊㄑㄧㄥㄐㄧㄓㄨㄛˊyángqīng‑jīzhuó

扬清激浊
  1. 》:揚清激濁。」使清流汙泥比喻 我們揚清激濁」。

lit. drain away filth and bring in fresh water (idiom)​; fig. dispel evil and usher in good, eliminate vice and exalt virtue