用作不及物动词
▲S+～(+A)
The traffic accidents in the city decreased last year.该城市去年交通事故减少了。
The population began to decrease.人口开始减少。
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.
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。

decrease, diminish, lessen, reduce
参见reduce条。

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

［派生词］ decreased adj. 减少的
［同义词］ v. abate, diminish, reduce
［反义词］ v. augment, boost, increase n. boost, increase
［词源］＜中古英语decresen(减少,缩减)