Photo taken on Dec. 11, 2019 shows self-checking passages at the Hengqin Port in Zhuhai, south China's Guangdong Province. The construction of the new Hengqin Port and an integrated transportation hub runs smoothly. It is expected that the daily crossings at the Hengqin Port will reach up to 222,000 once the new port begins operation. (Xinhua/Jin Liangkuai)