buckthe buck stops 'here1.■used for telling sb that you are prepared to accept responsibility for sth 自己承担责任；责无旁贷:We don’t try to escape our responsibilities. The buck stops here. 我们不会试图逃避自己的责任，我们责无旁贷。2.■ORIGIN The buck is a small object in a poker game that is placed in front of the player whose turn it is to deal the cards.buck﹙培克﹚是扑克牌戏中的庄家标志。buck up your i'deas (informal)3.■start to work harder or more efficiently; become more willing to do things 振作起来；打起精神:He’s been late every day for two weeks. He’ll have to buck up his ideas if he wants to keep his job.他两周来天天迟到，要是他想保住工作就一定要打起精神。make a fast/quick buck (informal,often disapproving)4.■earn money quickly and easily 轻易地赚钱:He didn’t really care about the business—he just wanted to make a fast buck. 他对生意并不怎么上心—他就想轻松赚大钱。5.■bang for your buck 另见bang6.■buck naked=stark naked 另见stark7.■pass the buck 另见pass