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"For me, online classes are less interactive than in real classroom. You cannot have eye contact with students," says Li Ding, a college English teacher in Shenyang, Northeast China's Liaoning province.

"From now on, you will get even more benefits from using 99, because we will have more technology and more financial resources to offer you increasingly better service," the message said.

"Given the impact that the COVID-19-generated crisis has had on the aviation industry, LATAM has been forced to make a series of extremely difficult decisions in the past few months," said the airline's CEO Roberto Alvo in a video statement.

"Global governance is totally unfit for 21st-century purpose and not least for fighting this pandemic. This thing is developing, not least within the southern hemisphere in places like Africa. These countries are going to need massive support. We are not seeing any of that," he said.

"Following a road map for future in-depth cooperation, China and ASEAN are on course for a closer community with a shared future," he said.