52. 大城市人口过多的起因和解决方法

Overpopulation in many urban centers around the world is a major problem. What are the causes of this and how can this problem be solved?

Keywords overpopulation overpopulated excessively large numbers of people excessive populations

urban centers cities metropolitan areas metropolises

Topic Specific Words employment opportunities server multinational corporation

rural migration relocate tax deductions or subsidies operations