It is found that the aerosol optical depth over China showed an increasing trend but a slow upward trend after 1985, especially in the megacity regions.

中国地区气溶胶光学厚度呈现逐年增加的趋势，但1985年后增加趋势减缓，这种变化在大城市区域表现得更为明显。

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Investor aus der Megacity: Shanghai Electric zählt zu den Marktführern in China.

来自中国超级大都市的投资者：上海电气是中国市场领导者。

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China's capital is now a megacity of almost 20 million, its streets hectic and clogged.

BBC: China's ever-widening wealth gap