Chinese President Xi Jinping (R) meets with his U.S. counterpart Donald Trump in Buenos Aires, Argentina, Dec. 1, 2018. President Xi attended a working dinner with President Trump in Buenos Aires on Saturday. (Xinhua/Li Xueren)

BUENOS AIRES, Dec. 1 (Xinhua) -- Chinese President Xi Jinping said on Saturday that China and the United States, as two major countries with great influence, shoulder important responsibilities in promoting world peace and prosperity.

Xi made the remarks at a working dinner with his U.S. counterpart, Donald Trump, in the Argentine capital, adding that cooperation is the best option for both sides.