求翻译：世界上有很多个民族，不同的民族又形成了不同的国家。国家的历史有长有短，疆域有大有小，实力有强有弱，人口有多有少，民族的构成、宗教信仰、政权性质和经济结构也存在差异，是什么意思？

The world has many ethnic groups, different ethnic groups and the formation of different countries. Country's history have long or short, the boundaries are small, strong or weak strength, more or less population, ethnic composition, religious beliefs, political and economic structure of the nature

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In the world has very many nationalities, the different nationality has formed the different country.The national history has the length to have short, the area varies, the strength has has the weakness, the population has has few much, nationality's constitution, the religious belief, the political

There are many people in the world, different people form different countries. Country's history have short, territory there are very small, strong weak strength, more or less of the population, ethnic composition, religious beliefs and political in nature, and there are also differences in economic