怎样区分reduce，decrease，diminish，decline？？
reduce，decrease，diminish，decline这一组动词都有"减少,减轻"的意思。主要区别在描述对象不同：
1、diminish v.指因为不断消耗，在数量方面缓慢减少，也指在素质或者价值的下降。例句：The supply of oil has diminished because of the war.由于战争石油的供应减少了。
2、reduce v.指人为地使某物在数量或重量方面的减少或降低。例句：He reduced the amount of money they could spend.他缩减了他们的开销.
3、decrease v.指数量上的减少；力量或者强度的减弱.The population decreased a lot last year.去年人口数量急剧下降.
4、decline v. (数目、价格、比率)下降；谢绝,婉言推辞；衰退,衰落。Last year, the crime rate in Chicago has sharply declined.去年芝加哥的犯罪率明显下降.
扩展资料：
1、Hourly output by workers declined 1.3% in the first quarter
第一季度工人每小时的产量下降了1.3%。
2、Union membership and union power are declining fast.
工会的人数和力量都在迅速萎缩。
3、The band declined to comment on the story
乐队拒绝对这一报道作任何评论。
4、He offered the boys some coffee. They declined politely.
他问那些小伙子要不要来点咖啡，他们婉辞了。
5、The first signs of economic decline became visible.
经济衰退的最初迹象开始显现出来。
参考资料：百度百科——decline
