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Digital infrastructure is also key to further economic growth in Africa. Vera Songwe, executive secretary of the United Nations Economic Commission for Africa, said that the continent is home to 1.3 billion with 50 percent being youths, so the service sector is key to Africa's economic growth.

Differing from the south version, the north open-pit coal mine has been further improved on the basis of existing ecological governance, with efforts being made to build it into a garden-style and landscape-style mine zone.

Digitalization can help boost operational efficiency, optimize services and identify new products or markets. It is a long-term strategy rather than a short-term adjustment in production capacity, the senior executive added.

Do you believe some of China's experiences or practices could be used to solve pressing global problems?

Domestic airlines have already opened 108 new international routes, mostly in Western Europe, Australia, Russia and Southeast Asia. Of those, 95 link with regions involved in the Belt and Road Initiative - mostly in Central Europe, Central Asia, South Asia and the South Pacific.