Make the soap white
As a Chinese idiom, Pinyin is zh à Z à ow é IB á I, which means to confuse black and white and right and wrong. It's from yuhuchun.
The origin of Idioms
The third fold of yuhuchun written by Wuhan Minister of the Yuan Dynasty: "you can't move your head and face, run into the river and well, drag the lane and the street, open your tongue to cheat your mouth, and use sweet words to make soap white."
Idiom usage
Used as a predicate, attribute, or object.
Make the soap white