a decrease in
collocation在...方面的减少
There has been a decrease in sales this quarter.
本季度销售额有所下降。
减少；下降；减少量
decreases — plural of decrease
先理解核心含义，再看它在真实句子里的用法。
减少；下降；减少量
An amount by which something becomes smaller or is made smaller.
The company reported a decrease in profits this quarter.
公司报告本季度利润下降。
数量减少或被减少的量。
An amount by which a quantity decreases or is decreased.
针数的减少,通常通过将要减少的针悬挂在另一个现有针上或与另一针一起编织来实现。
A reduction in the number of stitches, usually accomplished by suspending the stitch to be decreased from another existing stitch or by knitting it together with another stitch. See Decrease (knitting).
There has been a steady decrease in the population of the village over the years.
多年来该村人口持续减少。
We observed a significant decrease in temperature after the storm.
我们观察到风暴过后气温显著下降。
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在...方面的减少
There has been a decrease in sales this quarter.
本季度销售额有所下降。
显著减少
The company reported a significant decrease in profits.
该公司报告利润大幅下降。
略微减少
There was a slight decrease in temperature overnight.
夜间气温略有下降。
稳步减少
We observed a steady decrease in the population of the species.
我们观察到该物种的数量稳步减少。
减少的幅度
The decrease of 10% in revenue was unexpected.
收入减少10%是出乎意料的。
显示出减少
The latest data show a decrease in unemployment.
最新数据显示失业率下降。
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decrease: de-表示向下，crease联想crease(折痕)，折痕向下压平即减少。
作为名词时，通常用于正式或半正式场合，如商业报告和科学研究，但在日常对话中也较常见。
作为名词时，常与介词 in 连用，表示在某方面的减少。
Dictionary facts from ECDICT, WIKTIONARY.