非限定动词和复合句是英语语法中的重点问题,把这两部分语法问题异清楚了,对于学习医学英语,阅读和翻译医学书刊都有很大帮助。为此,我们特请作者撰写这两部分专题,计划分数次刊登。 Unconstrained verbs and compound sentences are the key issues in English grammar. The differences between these two grammatical problems are clear. They are very helpful for studying medical English, reading and translating medical books. To this end, we specifically asked the author to write these two topics, planning to publish in scores.