泾渭分明

Traditional (Taiwan): 涇渭分明

jīngwèifēnmíng ㄐㄧㄥ ㄨㄟˋ ㄈㄣ ㄇㄧㄥˊ

    • as rivers Jing and Wei separate clearly (idiom)
    • to be entirely different

Character by character

Sources