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"China Eastern carries more than 400,000 passengers across the world on a daily basis, and every year takes more than 120 million air travelers to 1,074 destinations in 174 nations and regions. All these safe and sound trips cannot be made without quality aircraft and engines," said Liu.

"But we have also seen concerning signs of stigma, misinformation and the politicization of the pandemic," he said.

"China is entering a new stage of institutional and rule-based opening up, which is more advanced compared with the opening up of the market," said Zhang Monan, a research fellow of the China Center for International Economic Exchanges.

"China doesn't intend to change the United States, and the United States surely cannot alter China. We would like to develop China-US relations featuring coordination, cooperation and stability, but we reject any bullying and injustice," Wang said.

"China has a relatively short history of focusing on and supporting the basic science," said Yan, which results in not enough labs — especially those excelling in their fields — for researchers to choose.