double /ˈdʌbl/ I. adj. 1.两倍的 (= twice): do double work做双份工作 Is the material single width or double width?这块料子是单幅的，还是双幅的? 2.两用的，双人的；双重的：a double bed 双人床；double windows 双层窗；have a double meaning 有双重意义 ‖II.n.［c］倍；双打；两倍：mixed doubles 男女混合双打 What is the double of five? 5的两倍是多少? Who’ll win the men’s (women’s) doubles at Wimbledon this year? 谁将赢得今年温布尔顿网球赛的男子(女子)双打冠军? ‖III.vt.1. 使加倍：double one’s income使收入翻番 2. 用于短语动词double up 弯着身子：He doubled up with pain. 他痛得直不起腰来。
double-decker /ˈdʌblˈdekə/ n. [c] 双层电汽车：双层甲板船；双层夹心三明治：a double-decker bus双层公共汽车；double-decker sandwiches三层面包夹两层肉的夹肉三明治
