知识扩展
词根词缀 词根 cuss= shake 摇动 concussion n. 冲击；震荡 con 加强 + cuss 摇动 + ion 表名词 → 摇动得厉害 → 震荡 discuss v. 讨论 dis 分散 + cuss 摇动 → 分散敲击〔问题〕→ 讨论 percussion n. 震动 per 加强 + cuss 摇动 + ion 表名词 → 猛烈摇动 → 震动 repercussion n. 反响；回响 re 回 + percussion 震动 → 震动回来的余震 → 反响；回响
词语辨析
effect result consequence outcome repercussion These are all words for a thing that is caused because of sth else. 以上各词均表示结果。 effect a change in sb/sth that is caused by sb/sth else 指对人 / 事产生的效应、影响、结果： Her criticisms had the effect of discouraging him completely. 她的批评使他完全丧失了信心。 result a thing that is caused or produced by sth else 指后果、结果： She died as a result of her injuries. 她由于受伤而死亡。 This book is the result of 25 years of research. 这本书是25年研究的结晶。 consequence ( rather formal ) a result of sth that has happened, especially a bad result 尤指不好的结果、后果： This decision could have serious consequences for the industry. 这项决定可能会对该行业产生严重后果。 注释 Consequences is used most frequently to talk about possible negative results of an action. It is commonly used with such words as adverse , dire , disastrous , fatal , harmful , negative , serious , tragic and unfortunate . Even when there is no adjective, consequences often suggests negative results. consequence最常用以指可能产生的负面结果，常与adverse、dire、disastrous、fatal、harmful、negative、serious、tragic、unfortunate等词连用。即使没有形容词修饰，consequence也常含负面结果之意。 outcome the result of an action or process 指行动或过程的结果、效果： We are waiting to hear the final outcome of the negotiations. 我们在等待谈判的最终结果。 用result还是outcome？ Result is often used to talk about things that are caused directly by sth else. result常指直接引致的结果： Aggression is often the result of fear. 好斗情绪通常是害怕所致。 Outcome is more often used to talk about what happens at the end of a process when the exact relation of cause and effect is less clear. outcome较常指某一过程完结时的结果，原因和结果之间的关系已不太明显： Aggresssion is often the outcome of fear. Result is often used after an event to talk about what happened. Outcome is often used before an action or process to talk about what is likely to happen. result常用于事情过去之后的结果，outcome常用于谈及行动或过程可能会产生的结

中文词源： repercussion 反响，恶果 re-,向后，往回，percussion,敲击，碰撞。比喻用法。 repercussion
精选例句

常见考点例句：

The repercussion s are hard to prevent .

这种反响是很难阻止的。

But the more important repercussion has to do with sovereign risk .

但最严重的后果还是主权风险。

In practice , the most obvious repercussion of this difference is that on mac os x , closing the last window of an application does not exit the application itself .

实际上，这种差别最明显的表现在于，在macosx中，关闭某应用程序的最后一个窗口并不会让该程序退出。