Correct

泾渭分明

/ jīng wèifēnmíng /
Strokes

Definition

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

Example

Definition

be as different as the clear water from the Jinghe River and the turbid water from the Weihe River―be entirely/utterly/strikingly different

1
Liǎng
rén
duì
de
tàidu
态度
jīngwèifēnmíng
泾渭分明
  

The two of them had entirely different attitudes towards the matter.