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"For now the biggest gap between China and global leaders in AI is our severe lack of AI professionals, and we are ready to work with education departments to nurture young professionals in the field," Li said. He said China's current reserve of AI expertise, especially at the high end, falls short of meeting the pressing demand for AI as the country undergoes rapid social and economic progress.

"Growers have to cut out the roses once they bloom to make space for the next batch. If the roses are left rotting in the fields, they will attract insects and infect other roses, so they have to be burned," Zheng adds.

"Founded in 1999, it is world's second and China's first such school, for training mountaineering talent," said Tsering, vice-chairman of the China Mountaineering Association. "Teams from the school have performed 29 high-altitude rescues in recent decades, and have set the rescue record above 8,500 meters."

"For example, we have clients whose dogs suffer from liver issues," she added.

"Fruits sold on Pinduoduo aren't of good quality. But it's just not worth the trouble going through a rather lengthy after-sales service for refund for such products," said Lu Jinli, a 45-year-old housewife from Guiyang, Guizhou province.