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Beijing can only claim rights to China's toughest ban if and when the city shows it means business, and that defying the ban has real consequences.

Beijing, Shenzhen and Shanghai are the top three cities for usage of conference calls powered by WeChat Work, an all-in-one communications app dedicated to enterprises, according to a recent report published by developer Tencent Holdings Ltd.

Beijing-based medical artificial intelligence solution provider HY teamed up with Huawei and won the "best assistant to doctors" award with highest accuracy rate in a contest in Russia, marking China's medical AI lead in the world.

Beijing Capital International Airport, in the city's northeast, is the second-largest in the world in terms of passenger volume. The new airport is expected to ease the load.

Beijing and Tianjin's efforts for joint growth were echoed by what has happened in Hebei. According to Yuan Tongli, vice-governor of Hebei province, during the past four years, Hebei has been sparing no efforts to contribute to the joint development of the Beijing-Tianjin-Hebei region, and the province had witnessed significant progress on many fronts, including transportation, environment, industrial manufacturing, education as well as health care.