diminish, decline, alleviate, decrease, reduce 的区别和用法辨析及示例例句
这组词都有“减少，减轻”的意思，其区别是：
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。
➤ The supply of oil has diminished because of the war.
由于战争石油的供应减少了。
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。
➤ He declined our invitation to dinner.
他婉拒了我们请他吃饭的邀请。
alleviate: v.在痛苦方面的减轻，缓和
➤ The painkiller alleviated the pain.
止疼药减缓了疼痛。
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。
reduce: v.指人为地使某物在数量或重量方面的减少或降低。
➤ He reduced the amount of money they could spend.
他缩减了他们的开销。
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。
➤ The supply of oil has diminished because of the war.
由于战争石油的供应减少了。
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。
➤ He declined our invitation to dinner.
他婉拒了我们请他吃饭的邀请。
alleviate: v.在痛苦方面的减轻，缓和
➤ The painkiller alleviated the pain.
止疼药减缓了疼痛。
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。
reduce: v.指人为地使某物在数量或重量方面的减少或降低。
➤ He reduced the amount of money they could spend.
他缩减了他们的开销。
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