population groups

• 人口群体

population groups的用法和样例：

例句

1. They are that part of the population to benefit most from the policy of family planning.
   她们是实行计划生育最主要的受益人口群体。
2. That is, when a pidgin comes to be adopted by a population as its primary language, and children learn it as their first language, then the pidgin language is called a creole.
   也就是说，当一种皮钦语被某一人口群体采纳为他们的主要语言，并且儿童也把它作为第一语言来学习的时候，这种皮钦语就被称作克里奥尔语了。