英锟絑锟斤拷示锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟絧锟津倍旓拷(sh锟斤拷)锟斤拷锟饺的撅拷锟酵讹拷N锟斤拷锟接ｏ拷锟斤拷锟斤拷锟斤拷一些锟斤拷锟斤拷锟斤拷锟斤拷锟叫的撅拷锟酵ｏ拷2锟斤拷锟斤拷锟斤拷5锟斤拷锟斤拷锟斤拷6锟斤拷锟斤拷锟斤拷8锟斤拷锟斤拷锟斤拷12锟斤拷锟饺ｏ拷锟斤拷锟斤拷锟斤拷锟絞锟絜锟斤拷锟斤拷锟斤拷要原锟斤拷锟斤拷锟节ｏ拷英锟絑锟酵漢锟絑锟节憋拷锟斤拷锟斤拷?q锟斤拷)锟斤拷缺锟斤拷?sh锟斤拷)锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷Z锟斤拷锟絚思锟絊锟筋異锟斤拷锟紽(xi锟斤拷n)锟斤拷锟斤拷锟矫碉拷英锟絑锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟酵硷拷锟斤拷锟斤拷锟絖锟絞锟斤拷锟絯锟絳锟斤拷锟铰ｏ拷

一锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷

1. A is n times as great锟斤拷long锟斤拷much锟斤拷... 锟斤拷as B.锟斤拷1锟斤拷

A is n times greater锟斤拷longer锟斤拷more锟斤拷... 锟斤拷than B.锟斤拷2锟斤拷

A is n times the size锟斤拷length锟斤拷amount锟斤拷... 锟斤拷of B. 锟斤拷3锟斤拷

锟斤拷锟斤拷锟斤拷锟戒都锟斤拷(y锟斤拷ng)锟絞锟介：A锟侥达拷锟�锟斤拷锟斤拷L锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷……锟斤拷锟斤拷B锟斤拷n锟斤拷锟斤拷A锟斤拷B锟斤拷锟絃锟斤拷锟洁，……锟斤拷n-1锟斤拷].

E.g. This book is three times as long as锟斤拷three times longer than锟斤拷three times the length of锟斤拷that one.

锟紷锟斤拷锟斤拷锟斤拷篇锟斤拷锟斤拷锟角憋拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟絃锟缴憋拷锟斤拷锟斤拷

注锟斤拷锟斤拷(d锟斤拷ng)锟斤拷鹊膶锟斤拷锟紹锟斤拷锟斤拷锟紷锟絩锟斤拷than锟斤拷as锟斤拷of锟斤拷B锟斤拷锟斤拷省去锟斤拷

2. increase to n times锟斤拷4锟斤拷

increase n times锟斤拷n-fold锟斤拷5锟斤拷

increase by n times锟斤拷6锟斤拷

increase by a factor of n锟斤拷7锟斤拷

锟斤拷锟斤拷锟斤拷式锟斤拷锟斤拷(y锟斤拷ng)锟絞锟介：锟斤拷锟接碉拷n锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷n-1锟斤拷锟斤拷锟斤拷

E.g. The production of integrated circuits has been increased to three times as compared with last year.

锟斤拷锟斤拷锟铰凤拷漠a(ch锟斤拷n)锟斤拷锟斤拷去锟斤拷锟斤拷锟斤拷锟剿兩憋拷锟斤拷

E.g. The output of chemical fertilizer has been raised five times as against l986锟斤拷

锟斤拷锟绞產(ch锟斤拷n)锟斤拷锟斤拷1986锟斤拷锟斤拷锟斤拷锟斤拷4锟斤拷锟斤拷

E.g. That can increase metabolic rates by two or three times.

锟角匡拷使锟斤拷锟絰锟斤拷锟斤拷叩锟皆�锟斤拷锟斤拷2锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷锟�1锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷

E.g. The drain voltage has been increased by a factor of four.

漏電夛拷锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷锟斤拷锟接碉拷原锟斤拷锟斤拷4锟斤拷锟斤拷锟斤拷

注锟斤拷锟斤拷锟紷類撅拷锟斤拷锟斤拷increase锟斤拷锟斤拷raise锟斤拷grow锟斤拷go/step up锟斤拷multiply锟斤拷锟絶锟斤拷锟斤拷锟�锟斤拷

3. There is a n-fold increase/growth ...锟斤拷8锟斤拷

锟斤拷(y锟斤拷ng)锟絞锟介：锟斤拷锟斤拷n-1锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷n锟斤拷锟斤拷锟斤拷锟紷锟斤拷锟斤拷锟斤拷還锟斤拷锟斤拷锟斤拷一些锟斤拷式锟斤拷

E.g. A record high increase in value of four times was reported.

锟斤拷(j锟斤拷)锟斤拷锟斤拷锟斤拷r值锟斤拷記錄碉拷锟斤拷锟絃锟斤拷3锟斤拷锟斤拷

4. double (锟斤拷锟斤拷1锟斤拷锟斤拷锟斤拷treble锟斤拷锟斤拷锟斤拷2锟斤拷锟斤拷锟斤拷quadruple锟斤拷锟斤拷锟斤拷3锟斤拷锟斤拷 锟斤拷9锟斤拷

E.g. The efficiency of the machines has been more than trebled or quadrupled锟斤拷

锟紷些锟紺(j锟斤拷)锟斤拷锟斤拷效锟斤拷锟斤拷锟斤拷锟斤拷锟�2锟斤拷锟斤拷3锟斤拷锟斤拷锟斤拷

5. 锟斤拷锟斤拷锟斤拷英锟絑锟斤拷還锟斤拷一锟絅锟斤拷again锟斤拷锟斤拷锟矫憋拷锟斤拷(sh锟斤拷)锟絶锟斤拷锟斤拷锟絕锟斤拷锟斤拷(sh锟斤拷)锟侥凤拷锟斤拷锟斤拷锟界：

A is as much 锟斤拷large锟斤拷long锟斤拷... 锟斤拷again as B. = A is twice as much 锟斤拷large锟斤拷long锟斤拷... 锟斤拷as B.锟斤拷10锟斤拷锟斤拷锟斤拷(y锟斤拷ng)锟絞锟介：A锟斤拷B锟洁（锟斤拷锟斤拷锟絃锟斤拷……锟斤拷1锟斤拷锟斤拷

A is half as much锟斤拷large锟斤拷1ong锟斤拷... ) again as B. = A is one and a half times as much锟斤拷large锟斤拷1ong锟斤拷... 锟斤拷as B.锟斤拷11锟斤拷锟斤拷锟斤拷(y锟斤拷ng)锟絞锟斤拷:A锟斤拷B锟洁（锟斤拷锟斤拷锟絃……锟斤拷一锟诫（锟斤拷A锟斤拷B锟斤拷一锟斤拷锟诫）锟斤拷

锟斤拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟絧锟斤拷

1. A is n times as small锟斤拷light锟斤拷slow锟斤拷... 锟斤拷as B.锟斤拷12锟斤拷

A is n times smaller锟斤拷lighter锟斤拷slower锟斤拷... ) than B.锟斤拷13锟斤拷

锟斤拷锟较兩撅拷锟斤拷锟�(y锟斤拷ng)锟絞锟介：A锟侥达拷小锟斤拷锟斤拷锟斤拷锟斤拷锟劫讹拷锟斤拷……锟斤拷锟斤拷B锟斤拷1/n锟斤拷A锟斤拷B锟�锟斤拷锟斤拷p锟斤拷锟斤拷锟斤拷……锟斤拷锟斤拷n-1锟斤拷/n锟斤拷

E.g. The hydrogen atom is near1y l6 times as light as the oxygen atom.

锟斤拷原锟接碉拷锟斤拷锟斤拷锟絪锟斤拷锟斤拷原锟接碉拷1/16锟斤拷锟斤拷锟斤拷锟斤拷原锟接約锟絧15/16锟斤拷锟斤拷

E.g. This sort of membrane is twice thinner than ordinary paper.

锟紷锟絅锟斤拷膜锟斤拷锟斤拷通锟斤拷锟斤拷要锟斤拷一锟诫（锟斤拷锟斤拷锟斤拷通锟斤拷锟斤拷鹊锟�1/2锟斤拷锟斤拷

注锟斤拷锟斤拷(d锟斤拷ng)锟斤拷鹊膶锟斤拷锟紹锟斤拷锟斤拷锟紷锟絩锟斤拷than/as B锟斤拷锟斤拷省去锟斤拷

2. decrease n times/n-fold 锟斤拷14锟斤拷

decrease by n times锟斤拷15锟斤拷

decrease by a factor of n锟斤拷16锟斤拷

锟斤拷锟斤拷锟斤拷式锟斤拷锟絞锟介：锟絧锟劫碉拷1/n锟斤拷p锟斤拷(n-1)/n锟斤拷decrease锟斤拷锟斤拷reduce锟斤拷shorten锟斤拷 go锟斤拷slow down锟斤拷锟絶锟斤拷锟�锟斤拷

E.g. Switching time of the new-type transistor is shortened 3 times.

锟斤拷锟酵撅拷锟絯锟杰碉拷锟絖锟絇(gu锟斤拷n)锟絩锟絞锟絪锟斤拷锟斤拷1/3锟斤拷锟斤拷锟絪锟教碉拷2/3锟斤拷锟斤拷

E.g. When the voltage is stepped up by ten times锟斤拷the strength of the current is stepped down by ten times.

電夛拷锟斤拷锟斤拷9锟斤拷锟斤拷锟斤拷锟斤拷锟�(qi锟斤拷ng)锟饺便降锟斤拷9/10锟斤拷锟斤拷90锟斤拷锟斤拷锟斤拷

E.g. The equipment reduced the error probability by a factor of 5.

該锟絆(sh锟斤拷)锟斤拷锟絗锟斤拷锟斤拷式锟斤拷锟斤拷锟�4/5锟斤拷

3. There is a n-fold decrease/reduction ...锟斤拷17锟斤拷

锟斤拷(y锟斤拷ng)锟絞锟介：锟絧锟斤拷1/n锟斤拷p锟劫ｏ拷n-1锟斤拷/n锟斤拷锟紷锟斤拷锟斤拷锟斤拷還锟斤拷锟斤拷锟斤拷一些锟斤拷式锟斤拷

E.g. A rapid decrease by a factor of 7 was observed锟斤拷

锟絣(f锟斤拷)锟紽(xi锟斤拷n)迅锟劫減锟劫碉拷1/7锟斤拷

E.g. The principal advantage of the products is a two-fold reduction in weight.

锟紷些锟絘(ch锟斤拷n)品锟斤拷锟斤拷要锟斤拷(y锟斤拷u)锟絚锟斤拷锟斤拷锟斤拷锟絧锟絧锟斤拷1/2锟斤拷

        锟斤拷锟斤拷锟叫憋拷锟斤拷(sh锟斤拷)锟斤拷锟絧锟斤拷锟酵硷拷锟斤拷锟絞锟斤拷锟叫诧拷锟統锟斤拷锟斤拷锟斤拷锟絚锟絟锟絑锟斤拷同锟斤拷锟角ｏ拷英锟絑锟节憋拷锟斤拷锟斤拷锟斤拷^锟斤拷锟斤拷(sh锟斤拷)锟絩锟斤拷锟給論使锟斤拷什么锟斤拷锟酵ｏ拷锟斤拷锟剿诧拷锟斤拷锟斤拷锟斤拷(sh锟斤拷)锟絶锟斤拷again锟斤拷锟斤拷锟解）锟斤拷锟斤拷锟斤拷锟斤拷锟紸(ch锟斤拷)锟斤拷锟斤拷(sh锟斤拷)锟节冿拷(n锟斤拷i)锟斤拷锟斤拷硕锟斤拷锟斤拷莾锟斤拷锟斤拷锟斤拷锟絧n锟斤拷锟斤拷锟斤拷锟角冿拷锟斤拷锟斤拷锟斤拷pn-1锟斤拷锟斤拷锟斤拷锟皆撅拷锟酵ｏ拷3锟斤拷锟斤拷锟斤拷50锟斤拷示锟侥憋拷锟斤拷(sh锟斤拷)锟斤拷锟斤拷=锟斤拷锟酵ｏ拷4锟斤拷锟斤拷 锟斤拷锟酵ｏ拷13锟斤拷锟斤拷示锟侥憋拷锟斤拷(sh锟斤拷)锟饺差＝锟斤拷锟酵ｏ拷12锟斤拷锟斤拷锟斤拷decrease锟斤拷by锟斤拷3 times锟斤拷(y锟斤拷ng)锟絞锟斤拷“锟絧锟斤拷2/3锟斤拷锟斤拷锟斤拷锟斤拷“锟絧锟斤拷3/4”锟斤拷

锟斤拷锟斤拷锟絇(gu锟斤拷n)锟斤拷锟絔锟斤拷

锟斤拷锟斤拷锟竭匡拷英锟絑知锟絉锟絚锟絉锟斤拷

锟斤拷锟铰高匡拷锟結訊锟斤拷锟竭匡拷锟斤拷锟竭★拷锟斤拷前锟斤拷(zh锟斤拷n)锟斤拷锟斤拷志愿锟斤拷锟�锟斤拷锟饺★拷锟�?j锟斤拷n)?sh锟斤拷)锟斤拷锟斤拷

锟竭匡拷锟絩锟絞锟斤拷锟斤拷全锟斤拷锟斤拷要锟斤拷(ji锟斤拷)锟絚

锟組锟斤拷"锟竭匡拷锟絎(w锟斤拷ng)"微锟脚癸拷锟斤拷號