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"Canada is our second hometown. Canadians have responded in the spirit of Dr (Norman) Bethune when our home country was attacked by a coronavirus outbreak. A drop of water shall be returned with a burst of spring. It's time for us to pay back and contribute to Canadian society," said Weng Guoning, chairman of the CTCCO.

"But the application of 5G in mines is still in a nascent stage, with the technology chiefly used to monitor mining situations and the health of employees working underground," Yao said.

"China is already the largest market for electrified vehicles, offering us unprecedented opportunities to develop new types of traction motors, which are the most important element of an electric vehicle's powertrain," he said.

"China is accelerating its pace in transforming from a country with an extensive cyber presence ... to a cyber powerhouse. The IT infrastructure has achieved substantial improvement," said Zeng Yu, deputy director of digital economy bureau of the Cyberspace Administration of China.

"Chicago is attractive to professionals and empty nesters who have sold their homes," he said.