例句
The average students' mastery level of non-existent appositive clauses in Chinese was 35%.
学生对于中文是否有同位语之语法结构之精通程度为35%。
Compare the two sentences and find the differences between the attributive clause and the appositive clause.
定语从句对先行词起修饰限制作用；同位语从句具体说明它前面的名词内容。
The elements in each appositive construction are to be nouns, pronouns and noun phrases, represent the same concept and can be turned into a definitive sentence.
进入同位结构的同位成分只能是名词、代词或名词性词组，同位成分在句中是同一概念，可以转化为判断句。