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"China's solid infrastructure construction and high attention from government authorities give the country capabilities to build a highway and develop related technologies quickly and efficiently," said Sheng Gang, chief engineer of the road design unit under the Ministry of Transport's Research Institute of Highway.

"Cultural exports, which undertake the responsibility of cultural communication between different countries, will help enhance the soft power of a country," he said.

"China was not rich at that time, but decided to build the Tanzania-Zambia Railway," he said, noting that the reason to build the railway was to break colonists' suffocation of Zambia.

"China will provide assistance to developing countries in their efforts to combat the COVID-19 pandemic and achieve economic, social recovery and bolster development to the best of our ability through bilateral and multilateral channels," Liu said in a written interview.

"Currently, about 80 percent of people going to or leaving the island province travel by air, providing huge growth potential for its aviation business," Chen said.