问题描述：
一个句中怎么出现了两个动词?
environments where passive smoking is unavoidable make it difficult to lead a healthy life.我记得一个句子中不能出现两个动词,从句除外.可是这句话中又有is又有make这是怎么回事呢?
environments where passive smoking is unavoidable make it difficult to lead a healthy life.我记得一个句子中不能出现两个动词,从句除外.可是这句话中又有is又有make这是怎么回事呢?
问题解答：
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