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"For domestic flights, the newly added flight times at first-tier airports were quite scarce last year, and the scale expansion of second-tier airports was slowing down. Facing the bottlenecks of capacity increase, we need to build a more diverse and tridimensional flight network and hub structure," he said.

"Giants such as Google, Facebook and Microsoft not only have strong financial resources, but more importantly, they have a large number of users who generate a large amount of data," Zhang said. "As the data resources are monopolized by them, it is difficult for today's AI startups to grow into giants as those companies in the eras of personal computer and mobile internet did."

"Five of the 10 countries worldwide reporting the highest new number of cases in the past 24 hours are in the Americas: Brazil, USA, Peru, Chile and Mexico," he said.

"Following special training, all Claridge's waiters are adept at the correct way to prepare the perfect cup of tea," says Henrietta Lovell of the Rare Tea Company. "The exact amount of tea is weighed before being brought to the table along with water at the optimum temperature, which is used to steep the tea to the guest's preferred strength. Once served, the remaining water is drained off the leaves ready for a second infusion - which experts regard as being even better than the first."

"Germany and China are major trading partners and I am optimistic that both will continue to cooperate in these uncertain times," Frank Appel, CEO of Deutsche Post DHL Group, said in an interview.