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"Digitalization has huge impact on dentistry in terms of scanners, treatment planning, and 3-D printing and can be largely applied in both tooth implanting and correction.

"Everyone has to be made aware of the changes and trained. To delay too much longer would be bad, but it's best to do things right and with a great deal of transparency," said Cochran, who is also a professor emeritus of aerospace engineering at Auburn University.

"Development of new energy cars will help tackle the problems of environmental pollution and energy shortage," Gu said.

"February and March could be said to have been our country's most critical period of fighting against the disease in the first half of this year, while prosecutors nationwide at that time were ordered to focus on and speed up the handling of pandemic-related cases," he explained.

"Despite government efforts to protect minority languages, these languages are in danger of disappearing due to modernization," said the retired civil servant, who works for the provincial ethnic affairs authority.