You also mentioned in your story that for China's urban population, the government is planning to raise the retirement age.

您在报道中还提到，对于中国城市人口，政府正在计划提高退休年龄。

To stick to this instruction, home-building in China's cities ought not to exceed " fundamental" demand, which depends on the growth of China's urban population and its desire for living space.

坚持这一指示，中国城市的住宅建设不应超过“基本”需求，这取决于中国城市人口的增长及其对居住空间的需求。

From the Nile Delta, it is nearly a thousand kilometers across the barren and rainless Sahara to the West before you reach another area that actually receives enough rainfall to support another Urban population — modern-day Benghazi, Libya.

从尼罗河三角洲出发，向西穿越贫瘠无雨的撒哈拉沙漠近千公里，才能到达另一个降雨量足以养活另一个城市人口的地区——今天的利比亚班加西。