一城市是人类文明的结晶,是人类活动的重要基地和舞台。城市作为一定的非农业人口生产和生活活动高度集中的场所,是社会发展的必然结果。城市化已成为不依人们意志为转移的世界性的历史趋势。 A city is the crystallization of human civilization, is an important base for human activities and the stage. As a place where the production and living activities of a certain non-agricultural population are highly concentrated, cities are the inevitable result of social development. Urbanization has become a worldwide historical trend that does not depend on the will of the people.