decrease

英 [dɪ'kriːs] 美 [dɪ'kriːs]

• v. 减少；减小；降低
• n. 减少；降低

双解释义

v. (动词)

1. vt. & vi. (使)缩短；减小，减少

   (cause to) become shorter,smaller,less

n. (名词)

1. [U]减小，降低

   reduction

2. [C]减少(量)

   amount by which sth decreases

详尽释义

v. 动词

1. 减，减少，降低，减弱，减轻，使缩短，压缩
2. 变小，下降，缩小，缩短，缩减

n. 名词

1. 减少，减小，减退，降低
2. 减少额，减少量
3. 减缩位置

英英释义

Noun:

1. a change downward;

   "there was a decrease in his temperature as the fever subsided"
   "there was a sharp drop-off in sales"
   

2. a process of becoming smaller or shorter

3. the amount by which something decreases

4. the act of decreasing or reducing something

Verb:

1. decrease in size, extent, or range;

   "The amount of homework decreased towards the end of the semester"
   "The cabin pressure fell dramatically"
   "her weight fell to under a hundred pounds"
   "his voice fell to a whisper"
   

2. make smaller;

   "He decreased his staff"
   

例句

用作动词 (v.)

1. They are making further efforts to decrease military spending.
   他们正在做进一步的努力来减少军费开支。
2. His interest in this subject gradually decreases.
   他对这门学科的兴趣逐渐减退。
3. The government projected a tax decrease.
   政府计划降低税收。
4. They tried to decrease the costs.
   他们设法降低成本。

用作名词 (n.)

1. The new treatment led to a huge decrease in the number of deaths.
   新的疗法使死亡率急剧减少。
2. There has been a steady decrease in population in this city.
   这个城市的人口在持续下降。

常见句型

用作动词 (v.)

用作不及物动词

S+～(+A)

1. The traffic accidents in the city decreased last year.
   该城市去年交通事故减少了。
2. The population began to decrease.
   人口开始减少。
3. Interest in the sport is decreasing.
   人们对此项运动的兴趣已逐渐减退。

用作及物动词

S+ ～+n./pron.

1. They decreased the size of the group from 25 to 15.
   他们把小组的人数从25人减少到15人。

用作名词 (n.)

1. The decrease in sales was almost 20 percent.
   销售量差不多减少了20％。
2. There has been a decrease in exports.
   出口货物有所减少。
3. Is crime on the decrease?
   犯罪案件是否在减少?

经典引文

• The bruise was still visible..though the swelling had decreased.

  出自： A. Sillitoe

• Decreasing the chances of his proposal being accepted.

  出自： J. G. Farrell

词汇搭配

用作动词 (v.)

～+介词

• decrease by 3 times 减少三倍
• decrease by 5 tons 减少五吨
• decrease by ten percent 减少百分之十
• decrease in number 数目减少
• decrease to 减少到

用作名词 (n.)

形容词+～

• gradual decrease 逐渐下降
• sharp decrease 急剧下降
• slight decrease 略微减少
• steady decrease 稳定下降

介词+～

• on the decrease 在减少

～+介词

• decrease in 在…方面的减少
• decrease in production 生产下降
• decrease to three hundred 减少到300

词义辨析

v. (动词)

decrease, diminish, lessen, reduce

• 这组词都可表示“降低”或“减少”。其区别在于:decrease指各种事物逐渐减少、逐渐衰弱的过程; lessen指减轻强度和减缓烈度,也可指从整体上减去部分或在程度上、数量上的减少; diminish指可以看得出的“缩小”“缩减”; reduce指缩小事物的范围、强度、数量等,也可指级别、地位或经济条件的降低。例如:
• Decrease the dose of medicine when you feel better.你感到好些就减少药剂用量。
• The number of fighters had now diminished to two, but the hilltop remained in our hands.现在战士只剩下两个人了,但我们仍然占领着山头。
• Good lubrication will reduce friction.良好的润滑会减少摩擦。
• The noise lessened as the plane got further away.飞机逐渐飞远了,噪音也就减弱了。

decrease，diminish，lessen，reduce，dwindle

• 这些词的共同含义是“减少，变少”。
• decrease指逐渐地、不断地减少。
• diminish侧重大小、数量和重要性的不断减小，强调减小的部分。
• lessen普通用词，与decrease近义。指数目、程度、价值、实力等的减少。
• reduce普通用词，含义广。指数量、程度的降低或减少。
• dwindle与decrease同义，指逐渐减小，但强调变得越来越少终至全无。

词源解说

• ☆ 14世纪晚期进入英语，直接源自中古英语的decresen，意为减少，缩减。

近反义词

【近义词】

• abate
• diminish
• reduce

【反义词】

• augment
• boost
• increase
• boost
• increase

派生词

n.(名词)

• decreased adj. 减少的