Countries and regions all over the world face the challenge of urbanization.
全球各地的国家和地区都面临城市化的挑战。
2
Countries and regions all over the world face the challenge of urbanization. How can we respond to this challenge?
全球各地的国家和地区都面临城市化的挑战。
3
The number of yellow fever cases has increased over the past two decades due to declining population immunity to infection, deforestation, urbanization, population movements and climate change.