fess up片语动词KK [fɛs ʌp] /fɛs ʌp/发音片语动词1坦白、承认、招认口语He finally fessed up to breaking the kitchen window.他终於坦白,厨房的窗户是他打破的。2说出实情、交代口语Come on, fess up — where did you hide the money?快说实话吧,你把钱藏在哪里了?用这个字练口说→