cover up (/gloss over)one’s fault; conceal (/cover up)the true features (/colours)of things;prettify
❍ 他常为自己～，把责任全推给别人。He often tried to whitewash himself and shift the blame entirely onto others.
傅粉施朱fù fěn shī zhū
傅：敷、搽；朱：红色，此处指胭脂。搽粉点胭脂。现多比喻掩盖缺点或掩饰事物的本来面目。powder and to rouge, prettify, cover up one’s fault