是singer(歌手)动词变职业名词1直接加er2如果单词末尾为e,则只需要直接加rwrite-writer clean-cleaner drive-driver dance-dancer teach-teacher
是singer(歌手)动词变职业名词1直接加er2如果单词末尾为e,则只需要直接加rwrite-writer clean-cleaner drive-driver dance-dancer teach-teacher
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