cover up (/gloss over)one’s fault; conceal (/cover up)the true features (/colours)of things;prettify
? 他常為自己～，把責(zé)任全推給別人。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：紅色，此處指胭脂。搽粉點(diǎn)胭脂。現(xiàn)多比喻掩蓋缺點(diǎn)或掩飾事物的本來(lái)面目。powder and to rouge, prettify, cover up one’s fault