It’s in a small town 20 miles south of the capital city.朋友,请帮忙分析句子的成份.不太理解20 miles 为何放在此处.

问题描述:

It’s in a small town 20 miles south of the capital city.朋友,请帮忙分析句子的成份.不太理解20 miles 为何放在此处.

It’s 主语+系动词做谓语
in a small town 介词短语做表语
20 miles south of the capital city数量词结构作定语,修饰town,其中:
20 miles 数量词,修饰 south of the capital city