常見例句雙語例句During the 1920s Fisher became rich from the invention and sale of a card-index system.在20世紀(jì)20年代,費(fèi)雪因?yàn)榘l(fā)明和銷售卡片索引系統(tǒng)成了富翁。The librarians have compiled a card-index catalogue so that they can afford facilities for reference.為便于參考起見,圖書館館員們編制了索引目錄卡。During the 1920s Fisher became rich from the invention and sale of a card-index system. He used the money to buy stocks on margin, and by 1929 was worth $10m.19世紀(jì)20年代費(fèi)雪因?yàn)榘l(fā)明并出售一種卡片索引系統(tǒng)而變得富有。權(quán)威例句The index tracks credit-card purchases of diesel fuel at truckstops across the country and provides a real-time indication of how much freight is moving from ports and factories to consumers.FORBES: Truckers Say Market's Wrong, Economy GrowsAs the Fiscal Cliff debate diffuses into so many Three-Card Monte games during 2013, perhaps the clarity of the Government Affordability Index can prevent us from being tricked, over and over and over again.FORBES: We Need To Reign In The Government Affordability Index 返回 card-index