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词根词缀学英语单词是很好的方法，下面是初中英语单词构词法前缀后缀词汇一览表。 前缀 例词 派生词 un- 不 happy unhappy like unlike usual unusual friendly unfriendly im-不 possible impossible 后缀 例词 派生词 -er人 teach teacher play player clean cleaner drive driver （以e结尾，-r） run runner （重读闭音节，双写-er) win winner travel traveller -or人 invent inventor visit visitor -ly（副词后缀） bad badly quick quickly careful carefully happy happily deep deeply lucky luckily usual usually | 
