urban growthˈə:bənɡrəuθ短语⁸⁴³²⁰⁺⁸ 基本例句 市区扩展 That urban growth— roughly half of humanity already lives in cities for the first time in recorded history— may lead to a big increase in greenhouse gas emissions. 有史以来，居住在城市里的人口粗略达到了整体人口的一半，这种城市扩张可能会导致温室气体排放的猛增。 yeeyan