洗心革面

lit. to wash one's heart and renew one's face (idiom); to repent sincerely and mend one's mistaken ways / to turn over a new leaf

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

face / side / surface / aspect / top / classifier for objects with flat surfaces such as drums, mirrors, flags etc

variant of 麵|面[mian4]

flour / noodles / (of food) soft (not crunchy) / (slang) (of a person) ineffectual / spineless

to wash / to bathe / to develop (photo)

animal hide / leather / to reform / to remove / to expel (from office)