除非 chúfēi HSK5 unless Origin Definitions Defs Strokes Stroke Words Sentences Sents 若要人不知，除非己莫为 ruòyàorénbùzhīchúfēijǐmòwéi if you don't want anyone to know, don't do it (proverb) The only way to keep a secret is not to do the deed; if you do something wrong, people will inevitably find out about it.