people与peoplespeople 表示“人”时，是一个只表示复数意义的可数名词，且不用词尾 -s，如可以说 some people(一些人)，many people(许多人)等，但不能说 a people 或 one people。

但是，若people表示“民族”，则为可数名词，此时不仅可与不定冠词连用，而且可以有复数形式。

如：The Chinese are a hard-working people.

中国人是一个勤劳的民族。

The peoples of the world are against it.

世界各国人民都反对它。

The English-speaking peoples share a common language.

讲英语的各民族拥有共同的语言。

It’s a book for children about Africa and its peoples 那是一本有关非洲和非洲各民族的儿童读物。

比较下面两句：How many peoples live in Asia?

亚洲有多少个民族?

How many people live in the room?

这房间住了多少人?

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