buck up片语动词KK [bʌk ʌp] /bʌk ʌp/发音片语动词1振作起来、打起精神口语Buck up — the worst part of the week is already over.振作起来吧,这周最难熬的部分已经过去了。2使振作、鼓舞、激励可拆开A short walk and some coffee bucked her up a little.散了一小段步、喝了点咖啡,她精神稍微好了些。3加强、改进、提升口语The team needs to buck up its defense before the final.球队得在决赛前加强防守。4快点、动作快英式、旧式Buck up, or we'll miss the last train home.快点,不然我们会错过回家的末班车。用这个字练口说→