BEIJING, Sept. 10 (Xinhua) -- Chinese President Xi Jinping said Friday that whether China and the United States can properly manage their relations concerns the future of the world, and is a question of the century both countries must answer well.

Containers of China COSCO Shipping Corporation Limited are seen at the Port of Long Beach in Los Angeles County, the United States, Feb. 27, 2019. (Xinhua/Li Ying)

Xi made the remarks in a phone conversation with his U.S. counterpart, Joseph R. Biden.