(informal) [countable] (especially NAmE) a US or an Australian dollar一美元；一澳元◆They cost ten bucks.这些东西价值十元。◆We're talking big bucks (= a lot of money) here.我们这里谈的可是大买卖。the buck [singular] used in some expressions to refer to the responsibility or blame for sth（用于某些表达方式）责任，过失◆It was my decision. The buck stops here (= nobody else can be blamed).这是我的决定。不要责怪别人。◆Everyone was trying to pass the buck (= not accept responsibility).每个人都在设法推卸责任。 ●bang for your/the ˈbuck (NAmE) (informal) value for the money that you spend花最少的钱取得最大的效果；很合算◆You get more bang for your buck with a desktop than with a laptop.买台式机比买膝上型电脑更合算。●make a (quick, fast, etc.) ˈbuck (informal) to make a lot of money quickly and easily轻易地赚钱◆investors who just want to make a quick buck只想轻松赚钱的投资者