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哪些英语单词加er后可变另一个单词,比如说run----runner,work----worker

题目详情
哪些英语单词加er后可变另一个单词,比如说run----runner,work----worker
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答案和解析
father mother brother sister teacher writer erase insert user locker flower butter farmer
bitter litter singer drawer driver over under worker finger killer lover leader speaker
lawyer bigger stronger cooker
表示职业的,大多数都是名次+er构成的.