[jiā bèi]
（加一倍） double; be twice as much
double one's income
使收入加倍
I paid only ￡2 for this old book and Mr. Smith offered me double for it.
我仅花两英磅买了这本旧书， 史密斯先生愿加倍付钱向我购买。
（泛指程度深） double; redouble
redouble one's vigilance
加倍警惕
redouble one's efforts
加倍努力
redouble one's efforts; be doubly careful
加倍注意
be twice as careful
加倍小心
at double the speed
以加倍速度
[生] doubling gemination