noun🔗Share美钞, 绿背, 绿钞 Any bill that is legal tender in the US (originally printed with green and black ink) issued by the Federal Reserve."He saved up his allowance, hoping to have enough greenbacks to buy the new video game. "他攒着零花钱，希望能攒够美钞买下那个新游戏。economyfinancegovernmentChat with AIVocabulary GamePractice Reading
noun🔗Share美金，美元。 The United States dollar."I need to save my greenbacks to buy a new bicycle. "我得攒点美金买辆新自行车。economyfinanceChat with AIVocabulary GamePractice Reading
noun🔗Share纸币，美钞。 A unit of American currency issued during the Civil War by the Treasury Department."During the Civil War, soldiers were often paid in greenbacks, which helped fund the Union army. "在美国内战期间，士兵们经常用绿钞（当时财政部发行的纸币，也叫美钞）支付军饷，这有助于为联邦军队提供资金。governmenthistoryeconomyfinancebusinesswarnationChat with AIVocabulary GamePractice Reading
