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In the first half of the year, China's trade volume via cross-border e-commerce platforms, under the oversight of customs authorities, increased 26.2 percent year on year.

Facts have proved that the United States itself is the biggest perpetrator damaging international environmental cooperation, and poses the most potent threat to the global environment, Hua said.

Economic cooperation between China and the United States is mutually beneficial in essence, said the spokesperson, adding that the interests of all countries are deeply intertwined in the era of globalization.

During the pandemic, the Cuban government has adopted a policy giving priority to strategic economic areas such as the national production of food, house construction and mining, the expert said.

It is imperative to systematically sum up the successful experience of China's quantum science and technology development, learn from useful practices of other countries, thoroughly analyze and judge the development trend, and find out the breakthrough point for the development of quantum science and technology in China, Xi pointed out.