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"Datong bronze hot pot was called 'elevated pot' during the Ming Dynasty (1368-1644). It took dozens of workers two months to make it. We needed 250 kilograms of charcoal to heat up the pot," he said.

"Due to the enthusiastic response, we launched registration for the third expo in August, and have already received many inquiries and reservations," said Zhou Lingyan, deputy general manager of the CIIE exhibition department of the National Exhibition and Convention Center (Shanghai).

"Down-to-earth employees are undervalued compared with those who are good at giving presentations and writing PPTs,"

"Educating tomorrow's entrepreneurs is vital for the nation's future as China is striving to maintain high levels of economic growth," said Xu.

"During the epidemic, the public spends longer time on phones and computers, and gets excessive eye fatigue. We should pay attention and protect our eyes," he said.