suck up tosb
—phrasal verbwithsuckverbuk/sʌk/us/sʌk/
informaldisapprovingtotryto make someone inauthorityapproveof you by doing and saying things that willpleasethem
奉承，巴结（某人）；拍（某人）马屁
"Why do youthinkheofferedto take all thatworkhome?" "Oh, he's justsuckingup to theboss."“你认为他为什么主动提出把那些工作都带回家做?”“哦，他只不过是为了讨好老板。”