without fail片語KK [wɪˋθaʊt fel] /wɪˈθaʊt feɪl/發音片語1務必、一定Please submit the application by Friday without fail.請務必在星期五之前提交申請。2總是、每次都She calls her grandmother every Sunday evening without fail.她每個星期天晚上都會打電話給奶奶,從不間斷。