同位语 分类：句子成分 定义 对名词或代词进行解释说明，与所修饰词指同一人或事物。 例句 My friend Tom is coming. Beijing, the capital of China, is a big city. The news that he won spread quickly. 标记词 逗号 破折号 of短语 namely that is or 相关术语 同位语从句 句子成分