一个句子The main losers are poor people who live in cities in countries.

问题描述:

一个句子The main losers are poor people who live in cities in countries.
in cities in countries.为什么是先说in cities而是在说in countries

Cities是城市的复数
countries是国家的复数
前者的级别小于后者的级别,所以在Cities在前,countries在后.