Father sat on the couch and read a novel ,She ran after the bus,and waved her boyfriend goodbye 这
问题描述：
Father sat on the couch and read a novel ,She ran after the bus,and waved her boyfriend goodbye 这
个句子为什么一个在and 前打了逗号,一个没有呢
答
至于这两句加不加逗号关系倒不大
但回过头说,后一句的后半句比前一句的后半句在结构稍稍复杂些：前句的后面是简单的谓语+宾语；后句的后面是谓语+宾语1+宾语2,即双宾.