Language users distributed in different places have accumulated common or unique experiences in production and life in the long-term development process. These experiences or knowledge systems are condensed in the language. Each language group has different understandings of nature The aspects have reached different depths, forming a complementary distribution of the cognitive structure, and together constitute the deep knowledge system of human broadcasting. The text is intended to explain:. ['Language promotes the differentiation of the knowledge system of various groups.', 'Human groups develop and use experience and knowledge through language.', 'Human knowledge systems are preserved and constructed verbally by different groups.', 'The depth and breadth of the experience and knowledge systems of human groups.']