Over the next two decades, the world will see a burst of urban expansion at a speed and on a scale never before witnessed in human history.
在接下来的二十年里,全世界将目睹一次极其快速的城市扩张,其速度和规模史无前例。
2
It is conceivable that the Western economies will have to adapt over time to somewhat slower growth rates than they have witnessed in the past 50-60 years.