ahlam1399
05-17-2018, 05:14 PM
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.
أكثر... (https://www.cnn.com/2018/05/16/world/world-population-cities-un-intl/index.html)
أكثر... (https://www.cnn.com/2018/05/16/world/world-population-cities-un-intl/index.html)