(一) A is N times as great(long, much，…)as B. (①)
A is N times greater (longer, more，…)than B. (②)
A is N times the size (length, amount，…)of B. (③)
以上三句都應譯為：A的大小(長度，數量，……)是B的N倍.
e.g. This book is three times as long as (three times longer than/three times the length of)that one.
這本書的篇幅是那本書的'3倍(即長兩倍)。
注：當相比的物件B很明顯時，than (as，of) B常被省去。
(二) increase to n times(④)
increase n times／n-fold(⑤)
increase by n times(⑥)
increase by a factor of n(⑦)
以上四式均應譯為：增加到n倍 (或：增加n-1倍)。
e.g. The production of integrated circuits has been increased to three times as compared with last year. 積體電路的產量比去年增加了兩倍。
e.g. The output of chemical fertilizer has been raised five times as against l986. 化肥產量比1986年增加了4倍。
e.g. That can increase metabolic rates by two or three times. 那可使代謝率提高到原來的2倍或3倍(即提高1倍或2倍)。
e.g. The drain voltage has been increased by a factor of four. 漏電壓增加了3借(即增加到原來的4倍)。
注：在這類句型中increase常被raise，grow，go/step up，multiply等詞所替代。
