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As China's first city to enforce strict regulations on garbage sorting and recycling, the municipality stipulated that residents should classify garbage into four categories: recyclables, kitchen waste, hazardous waste and residual waste.

Artificial intelligence has played a "major and unique" role in tackling the COVID-19 outbreak in China, ranging from patient tracking to logistical support to traffic management, a senior science official said on the weekend.

Apple Inc shares, which fell by 38 cents to close at 4.24 on Tuesday, brought the stock's loss since the start of November to more than 20 percent.

As China published a white paper on Sunday denouncing US unilateral and protectionist measures, foreign business and trade experts said that protectionism must be avoided as it is shortsighted and will have an adverse effect on the global economy in the long run.

As China's state news agency, Xinhua will provide positive and healthy news products to the people of China and Greece, build a bridge for bilateral information exchanges, and contribute to furthering the two countries' friendship, he added.