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"But pupils under the age of seven still don't have a clear and fixed vascular pattern, therefore they cannot use finger vein recognition systems," Su said.

"COVID-19 has not slowed down the pace of our work," he said. "The credit goes to the management and workers, both Pakistanis and Chinese."

"China imports more than 60 percent of its crude oil from other countries, and more reforms are needed to boost domestic production,"Han said.

"China has advantages in the speed of AI development and its wide application, but its weak points are the depth of basic research and originality," Wan said.

"By integrating online and offline and combining teachers from both China and abroad, we endeavor to help kids be immersed into a pure English-learning environment," he added.