學個詞 Learn A Word:1698 dual

　　今天我們要學的詞是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. 一些擁有雙重國籍的臺灣人決定放棄美國國籍，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. 兩個醫(yī)生在發(fā)表的新書中說，美國不斷上漲的醫(yī)療開銷是對民眾健康和錢袋的雙重威脅。好的，今天我們學習的詞是 dual, dual, dual...