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Didi said on Wednesday that it has launched its Didi Express service in southwestern Kazan, the capital and largest city of the Russian Republic of Tatarstan, home to the country's largest IT park.

Didi Chuxing covers about 400 million users in more than 400 Chinese cities, accounting for 80 percent of China's private car-hailing market and 99 percent of the taxi preorder market, as reported by Sina.

Different from "digital city" or "intelligent city", the concept of a smart city is that it must be oriented towards meeting human needs, collecting and sharing information with high-tech support and human interaction, and creating inclusive and livable cities as a result.

Dide Keyizi, a Yi resident of Damawu village in Yihai town, rode a sanlunche－a large, motorized tricycle－with eight family members to flee the flood on Friday night.

Despite the novel coronavirus outbreak, 88 percent of 20,000 stores said they would not trim their employment this year and 38 percent might hire more people, according to a survey conducted by Alipay and Alibaba-backed Internet bank MYbank.