decrease

verb

1. （使大小、数量等）减少，减小，降低
   to become or make sth become smaller in size, number, etc.
   1. The number of new students decreased from 210 to 160 this year.
      今年新生人数从210减少到160。
   2. The price of wheat has decreased by 15%.
      小麦价格降低了15%。
   3. This species of bird is decreasing in numbers every year.
      这种鸟的数量在逐年减少。
   4. a decreasing population
      逐渐减少的人口
   5. People should decrease the amount of fat they eat.
      人们应减少脂肪的摄入量。

noun

1. 减少；降低；减少量
   the process of reducing sth or the amount that sth is reduced by
   1. There has been some decrease in military spending this year.
      今年的军费开支有所减少。
   2. a decrease of nearly 6% in the number of visitors to the museum
      参观博物馆人数下降将近6%

The verb is pronounced /dɪ'kriːs/. The noun is pronounced /'diːkriːs/. 动词读作 /dɪ'kriːs/。名词读作 /'diːkriːs/。


1. V-ERG (使)减少;(使)减小;(使)降低
   When something decreases or when you decrease it, it becomes less in quantity, size, or intensity.
   1. Population growth is decreasing by 1.4% each year...
      人口增长率正在以每年 1.4% 的速度下降。
   2. The number of independent firms decreased from 198 to 96...
      独立公司的数量从 198 个减少到了 96个。
   3. Raw-steel production by the nation's mills decreased 2.1% last week...
      上周该国钢铁厂的原钢产量下降了 2.1%。
   4. Since 1945 air forces have decreased in size...
      自 1945 年以来，空军的规模已经有所缩减。
   5. Gradually decrease the amount of vitamin C you are taking...
      逐渐减少维生素 C 的服用量。
   6. We've got stable labor, decreasing interest rates, low oil prices.
      我们拥有稳定的劳力、不断降低的利率以及低廉的石油价格。
2. N-COUNT 减少;减小;降低
   A decrease in the quantity, size, or intensity of something is a reduction in it.
   1. ...a decrease in the number of young people out of work...
      失业青年人数的减少
   2. Bank base rates have fallen from 10 per cent to 6 per cent — a decrease of 40 per cent.
      银行的基本利率已从 10% 降到了 6%，降幅高达 40%。

1. Population growth is decreasing by 1.4% each year
   人口增长率正在以每年1.4%的速度下降。
2. The number of independent firms decreased from 198 to 96
   独立公司的数量从198个减少到了96个。
3. Raw-steel production by the nation's mills decreased 2.1% last week
   上周该国钢铁厂的原钢产量下降了2.1%。
4. Gradually decrease the amount of vitamin C you are taking
   逐渐减少维生素C的服用量。
5. We've got stable labor, decreasing interest rates, low oil prices.
   我们拥有稳定的劳力、不断降低的利率以及低廉的石油价格。
6. Bank base rates have fallen from 10 per cent to 6 per cent — a decrease of 40 per cent.
   银行的基本利率已从10%降到了6%，降幅高达40%。
7. If the egg is not fertilised oestrogen and progesterone decrease.
   如果卵细胞没有受精，雌激素和黄体荷尔蒙就会下降。
8. There has been a decrease in traffic accidents.
   交通事故减少了。
9. Last year there was a 20% decrease in his earnings.
   去年他的收入减少了20%。
10. The demand for tea is on the decrease ( each year).
    茶叶的需求量（逐年）递减。
11. There has been a progressive decrease in population every year in this city.
    这个城市的人口在逐年递减。
12. Regional pilot health reform project contributes to decrease in infant mortality, increase in life expectancy.
    区域卫生改革试点项目为降低婴儿死亡率、增加人口预期寿命作出了贡献。
13. The population began to decrease.
    人口开始减少。
14. Catagensis is marked by a loss of hydrogen, and consequently by a decrease of the h/ c ratio.
    后生阶段以氢减少必然导致h／d比率降低为特征。
15. An additional benefit resulting out of sodium hydroxide recovery is the decrease in consumption of alum at the treatment plant.
    回收氢氧化钠的另一好处，是降低了处理厂的铝盐消耗量。
16. The timbre of the laryngeal sound stands out, and oral noise decrease.
    噪音的音色充分显露出来，口腔的噪音就消失了。
17. Increased productivity is accompanied by a progressive decrease in production costs.
    产品的成本随着生产率的提高而递减。
18. There has been a decrease in exports.
    出口货物有所减少。
19. If you have a healthy spine, you will decrease the likelihood of back pain.
    如果你拥有健康的脊椎，你就减少了背痛的可能性。
20. You can modify the number in the_loopInterval property to increase or decrease the time between each image.
    您可以通过修改loopInterval属性中的数字来增加或减少图像之间的时间。
21. Increase and decrease the number of used threads depending on load.
    根据负载增加和减少使用线程的数量。
22. These kinds of manual controls all decrease final quality as well as increase time-to-market.
    这些种类的手工控制都减少了最终质量，并且增加了投放市场的时间。
23. The decrease also reflects a weak economy.
    工作时间降低也反映了日本经济疲弱。
24. There has been a decrease in our imports.
    我们的进口减少了。
25. Pressure will increase on public expenditure and aid levels, which may decrease.
    公共支出和援助额度将面临更大的压力，二者都可能会减少。
26. This new system can ensure the security and can decrease the interaction times as well.
    这个新方案不仅能够保证安全性，而且还减少了交互次数。
27. Should I decrease the amount of fragmentation and interruption in my work?
    我是否应该减少工作的破碎性和干扰因素？
28. This pure gold is commonly alloyed with other metals to increase its hardness and decrease its cost.
    这通常是纯金合金与其他金属，以增加其硬度和降低其成本。

  decrease diminish lessen reduce【导航词义：减少，降低】

  decrease v. （使）减少，（使）变小

〔辨析〕指变少或降低水平。

  diminish v. （使）减小，（使）降低

〔辨析〕指大小、数量不断减小，也可引申为贬低某事物的重要性或价值。

  lessen v. （使）变小，（使）减少

〔辨析〕指程度、规模等减少，也可指降低某事物的可能性、影响等。

  reduce v. 减少，减小

〔辨析〕指降低价格、数量、规模等。

noun

1. the act of decreasing or reducing something

   Synonym:    diminutionreductionstep-down

2. the amount by which something decreases

   Synonym:    decrement

3. a change downward
   1. there was a decrease in his temperature as the fever subsided
   2. there was a sharp drop-off in sales

   Synonym:    lesseningdrop-off

4. a process of becoming smaller or shorter

   Synonym:    decrement

verb

1. decrease in size, extent, or range
   1. The amount of homework decreased towards the end of the semester
   2. The cabin pressure fell dramatically
   3. her weight fell to under a hundred pounds
   4. his voice fell to a whisper

   Synonym:    diminishlessenfall

2. make smaller
   1. He decreased his staff

   Synonym:    lessenminify