decrease
- v.减少;降低;(使大小、数量等)减小
- n.减少;降低;减少量
复数： decreases 过去式： decreased 现在分词： decreasing 过去分词： decreased 第三人称单数： decreases
de- 离开,向下 + creas- 增长,产生 + -e
decreaseverb
（使大小、数量等）减少，减小，降低
to become or make sth become smaller in size, number, etc.
The number of new students decreased from 210 to 160 this year.
今年新生人数从210减少到160。
The price of wheat has decreased by 15%.
小麦价格降低了15%。
This species of bird is decreasing in numbers every year.
这种鸟的数量在逐年减少。
a decreasing population
逐渐减少的人口
People should decrease the amount of fat they eat.
人们应减少脂肪的摄入量。
decrease
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2
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.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。
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3
N-COUNT 减少;减小;降低
A decrease in the quantity, size, or intensity of something is a reduction in it....a decrease in the number of young people out of work...
失业青年人数的减少
noun
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1
- the act of decreasing or reducing something
- Synonym: diminution reduction step-down
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2
- the amount by which something decreases
- Synonym: decrement
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3
- a change downward
- there was a decrease in his temperature as the fever subsided
- there was a sharp drop-off in sales
- Synonym: lessening drop-off
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4
- a process of becoming smaller or shorter
- Synonym: decrement
verb
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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
- Synonym: diminish lessen fall
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2
- make smaller
- He decreased his staff
- Synonym: lessen minify
数据来源：WordNet
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There has been some decrease in military spending this year .
今年的军费开支有所减少。
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People should decrease the amount of fat they eat .
人们应减少脂肪的摄入量。
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The number of new students decreased from 210 to 160 this year .
今年新生人数从210减少到160。
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Fatal road accidents have decreased in frequency over recent years .
近年来致命交通事故发生率已经下降。
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The price of wheat has decreased by 15 % .
小麦价格降低了15%。
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This species of bird is decreasing in numbers every year .
这种鸟的数量在逐年减少。
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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。
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The rate of accumulation decreases with time .
积累的速度随着时间变慢。
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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。
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Gradually decrease the amount of vitamin C you are taking
逐渐减少维生素C的服用量。
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Since 1945 air forces have decreased in size
自1945年以来，空军的规模已经有所缩减。
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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。
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The number of young people obtaining qualifications has remained static or decreased
获得资格证的年轻人数量一直维持不变或出现下降。
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The combination of hot weather and decreased water supplies is hurting many industries
炎热的天气和供水的减少正危及很多行业。
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Blood pressure decreases with exercise .
血压随着锻炼而降低。
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Contrary to popular belief , moderate exercise actually decreases your appetite
与通常的看法相反，适度的运动事实上会降低食欲。
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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%。
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The tidal stream or current gradually decreases in the shallows
浅滩上的潮水逐渐退去。
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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%。
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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。
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They need a reliable method to decrease the divorce rate .
他们需要一个可靠的办法来降低离婚率。
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We decreased the size of the group from 15 to 5 .
我们把小组的人数从15人减少到5人。
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The local government has adopted effective measures to decrease unemployment .
当地政府已经采取有效措施减少失业人数。
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A combination of factors may be responsible for the decrease in car sales .
多种因素的综合作用可能导致了汽车销量的下降。
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Her temperature decreased .
她的体温下降了。
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Last year there was a 20 % decrease in his earnings .
去年他的收入减少了20%。
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The demand for tea is on the decrease ( each year ) .
茶叶的需求量（逐年）递减。
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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。
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His interest in this subject gradually decreases .
他对这门学科的兴趣逐渐减退。
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There has been a decrease in traffic accidents .
交通事故减少了。
指变少或降低水平。
The local government has adopted effective measures to decrease unemployment.
当地政府已经采取有效措施减少失业人数。
Her temperature decreased.
她的体温下降了。
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。
The company planned to diminish the cost of production.
公司计划减少生产成本。
Water in the pond gradually diminished due to lack of rainfall.
由于缺少降雨，池塘里的水逐渐减少。
His comments were only said to diminish the importance of her discoveries.
他的评论就是为了贬低她的发现的重要性。
指程度、规模等减少，也可指降低某事物的可能性、影响等。
Her anxiety lessened while listening to the music.
听音乐的时候，她的焦虑减轻了。
Exercise lessens the risk of heart disease.
进行锻炼可降低患心脏病的风险。
The program has lessened the effects of car pollution.
该计划降低了汽车污染的影响。
指降低价格、数量、规模等。
We should take measures to reduce the price.
我们应该采取各种措施来降低物价。
A plan to reduce crime was announced recently.
最近宣布了一项降低犯罪率的计划。