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He also attended New Oriental Chinese Music Scene concert dedicated to the 45th anniversary of Greece-China diplomatic relations and visited the Piraeus port project managed by China COSCO Shipping.

Yu, who is also a member of the Standing Committee of the Political Bureau of the Communist Party of China Central Committee, called on non-Communist parties and personnel to guide private enterprises to participate in infrastructure construction, investment and industrial capacity cooperation in Belt and Road countries.

By the end of last year, combined debt of central and local governments in China stood at 27.3 trillion yuan (about 4 trillion U.S. dollars), with a debt-to-GDP ratio at around 36.7 percent, official data showed.

The Chinese economy has become more stable and sustainable, and has made progress in restructuring and improving efficiency, Li said when addressing the opening of the Annual Meeting of the New Champions 2017, or Summer Davos, in Dalian.

Gonzalez, who studies Chinese in the Confucius Institute, says that they "are very happy" and have overcome their differences.