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

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.