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"Convenient and efficient transportation networks are critical to the free flow of production factors, cross-border trade and travels," he said.

"China's AI industry is flourishing currently, epitomized by the fact that an increasing number of tech breakthroughs are being made. AI is also being applied in a string of vertical industries," said Chen Zhaoxiong, vice-minister of industry and information technology.

"Collecting materials, such as product advertising, transaction messages and chat records with sellers as evidence is also a necessity," she added.

"Chinatown, in its own way, is evolving to cater for different tastes," he said. "We're seeing now lots of students from the Chinese mainland hanging out in Chinatown. They might come from different parts of China and have different tastes, but the businesses are responding to that."

"China will face a severe challenge in meeting its pension obligations," Chu Fuling, director of the Institute of Social Security Studies at the Central University of Finance and Economics in Beijing, told Xinhua on Saturday.