The coming decades will see the growth of colossal megacities as the world's population increasingly moves into urban environments, a new United Nations report predicts.
원문출처 : https://www.cnn.com/2018/05/16/world/world-population-cities-un-intl/index.html
원문출처 : https://www.cnn.com/2018/05/16/world/world-population-cities-un-intl/index.html