拼音：wèi zhuó jīng qīng

解释：泾水清，渭水浊。用以比喻事物和人品的差别。

出处：沈砺《咏史》；“渭浊泾清本异流，当涂符谶趁时收。”

感情：渭浊泾清是中性词。

繁体：渭濁涇清

近义词：泾渭分明

用法：The difference is as distinct as that between night and day.