學(xué)個(gè)詞 Learn A Word:1698 dual

　　今天我們要學(xué)的詞是dual。Dual 雙重的。A number of Taiwan residents who hold dual citizenships have chosen to renounce their American citizenship to avoid paying taxes under the Foreign Account Tax Compliance Act. 一些擁有雙重國(guó)籍的臺(tái)灣人決定放棄美國(guó)國(guó)籍，以免交按照海外帳戶稅收法案必須繳納的稅款。In a new book, two doctors claim that the rising cost of medical care in the U.S. is a dual threat to our health and pocketbooks. 兩個(gè)醫(yī)生在發(fā)表的新書(shū)中說(shuō)，美國(guó)不斷上漲的醫(yī)療開(kāi)銷是對(duì)民眾健康和錢袋的雙重威脅。好的，今天我們學(xué)習(xí)的詞是 dual, dual, dual...