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"China will stand with the people of Afghanistan and play a positive and constructive role in their country's peace and economic development, as well as taking part in regional cooperation efforts," he said.

"China's rare-earth export quota didn't have the desired effect on the importing countries, especially Western countries, because smuggling of rare earths was rampant and some export companies falsified customs codes to evade the export quota and continued to export them to other countries," Jin Baisong, a retired researcher at the Chinese Academy of International Trade and Economic Cooperation, said in an article published on China Daily's website.

"Chinese investment is helping the UK develop infrastructure and create jobs. Nearly 50,000 British businesses import goods from China, while more than 10,000 sell their goods to customers here," she said.

"Cross-infection is the main cause of the epidemics, especially at schools and in enclosed areas."

"Cross-border e-commerce has made rapid and notable achievements since the pilot zones were established and has become a new area of growth for imports and exports," Li said. "We should facilitate domestic consumption and at the same time improve export quality in the global market."