这个句子语法有错误么?名词当动词用Theory serves the basic of practice,and～penetration～during the whole practice.It is the people summarizes from the practice about the nature and the social knowledge system summary,al
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第一句话没问题.serve修饰basics和penetration
第二句不知所云
It is that the people summarized from the practice about the nature and the social knowledge system,and instructed the practice.
这样就没问题,不过我不明白你要说什么.