【重点单词及短语】
outgoing adj. 即将离任的
account for 对……负有责任;对……做出解释;说明……的原因
urban sprawl 城市扩张;都市向郊区扩张的现象
satellite city 卫星城市
dormitory city 郊外住宅区
economic disparity 经济差距
urban unrest 城市动乱
sanitation n. 环境卫生
marginalisation n. 边缘化
segregation n. 种族隔离;隔离;分离
ghetto n. 贫民区;犹太人区
Question time:
1. What is the so-called mega-region according to the UN report?
2. Can you state the advantages and disadvantages of mega-region?
