
A freighter sails at Guoyuan port on the Yangtze River in Chongqing, southwest China, April 14, 2017. Guoyuan port is a 16-berth port connected to the railway in Chongqing. (Xinhua/Liu Chan)

A freighter sails at Guoyuan port on the Yangtze River in Chongqing, southwest China, April 14, 2017. Guoyuan port is a 16-berth port connected to the railway in Chongqing. (Xinhua/Liu Chan)