mouth off片语动词KK [maʊθ ɔf] /maʊθ ɔf/发音片语动词1顶嘴、出言不逊、无礼反驳口语He got detention for mouthing off to his teacher again.他又对老师出言不逊,被留校处罚。2大放厥词、大发议论、夸口口语She's always mouthing off about politics at family dinners.她总在家庭聚餐上对政治大放厥词。用这个字练口说→