underdeveloped nation

• 不发达国家

underdeveloped nation的用法和样例：

例句

1. Most of the underdeveloped countries are developing countries.
   不发达国家中的大多数是发展中国家。
2. In underdeveloped countries, prices may remain static for several years.
   在不发达国家，物价会连续几年保持不变。