decrease,reduce的区别

1、decrease 强调数目或使人不快之物的逐渐减少。

如:to decrease the number of working hours,

减少工作时间

to decrease traffic accidents.

减少交通事故，等

The workmen want to decrease the number of working hours and increase pay.

工人要求减少工作时间而增加工资。

2、reduce 则表示尺寸、数量、程度或强度的减少，词义引伸之后，可以表示地位、处境、状况的降低。

如:to reduce the speed,减速

to reduce household expense,节省开支

to be reduced to tears,减少眼泪

This greatly reduced the speed of the ship ,for there was danger that if she travelled too quickly,this rudder would be torn away.

这大大减低了船速，因为如果它走得太快，这个舵会有被冲掉的危险。

你可以看看，好像这样就比较好分出来了！