求翻译：首先是普遍性。当今世界，有2000多个民族分布在200多个国家和地区。民族问题广泛地存在于不同制度的国家中，涉及社会生活的方方面面。民族问题作为社会总问题的一部分，是一种普遍存在、内容宽泛的社会现象。是什么意思？

The first is universal. In today's world, more than 2000 national distribution in over 200 countries and regions. Ethnic problems exist in the countries of the different systems involved in all aspects of social life. Ethnic issues as part of the problem of society, is a ubiquitous, the contents of