The sentence consists of a main clause and a subordinate clause.
这
中有一个
和一个从。
The sentence consists of a main clause and a subordinate clause.
这中有一个和一个从。
Similar in principle to the enclosing of parenthetic expressions between commas is the setting off by commas of phrases or dependent clauses preceding or following the main clause of a sentence.
类似将附带说明放在逗号之间
规则，位在子要子之前或之后片语或从属子，也应以逗号隔开。
声明：以上例、词性分类均
网资源自动生成，部分未经过人工审核，其表达内容亦不代表本软件
观点；若发现问题，欢迎向我们指正。
