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They voiced readiness to strengthen cooperation on combating the epidemic, including vaccine and drug research and development.

China will also assist people who have come back to China during the epidemic, helping them return to their overseas posts, while stepping up efforts to make employment in overseas projects more localized, she said.

Adhering to the new model of state-to-state relations featuring dialogue and partnership, not confrontation or alliance, China will build more extensive global partnerships, he said.

Meanwhile, in the 240-plus years since its founding, the United States has only seen 16 war-free years, said Zhao, adding its military budget for 2019 exceeded 716 billion U.S. dollars, equivalent to the combined military spending of the nine countries trailing the United States.

"Tianwen-1 is going to orbit, land and release a rover all on the very first try, and coordinate observations with an orbiter. No planetary missions have ever been implemented in this way. If successful, it would signify a major technical breakthrough," said an opinion piece on Nature, a world-renown weekly international science and technology journal.