友: Ⅰ名词1.(朋友) friend 短语和例子好友 close friend; 良师益友 good teacher and helpful friend; 男[女] 友 boy [girl] friend; 战友 comrade-in-arms2.(姓氏) a surname 短语和例子友通期 you tongqiⅡ形容词(有友好关系的) friendly
倍: Ⅰ名词(跟原数相同的量) times 短语和例子五倍 five times; 百倍 hundredfold; 该厂产量成倍增长。 the output of the factory has doubled and redoubled. 十是五的两倍。 ten is twice as much as five.Ⅱ形容词(加倍) double; twice as much 短语