together with 的用法

题目

together with 的用法
为什么Their meal arrived together with a bottle of read wine中用together with 不用逗号,而 Peter,together with his classmates,is leaving for another city tomorrow 要用逗号呢?

答案

这里是句子的成分如何组合的问题,第二句用逗号,是因为together with his classmates是做插入语,做补充说明之用,可以改为跟第一句一样的语序：Peter is leaving for another city tomorrow together with his classma...