Aerial photo taken on Dec. 17, 2019 shows a view of the Gaimao Railway Port in Guiyang, capital city of southwest China''s Guizhou Province. Soon to be fully built with an annual throughput capacity of 1.2 million tons, the Gaimao Railway Port for foreign trade will become the first one of its kind in Guizhou. As a terminal for China-Europe freight trains, it is also expected to further enhance Guizhou''s role in the Belt and Road Initiative (BRI). (Xinhua/Liu Xu)

An engineer checks an electric device at the Gaimao Railway Port in Guiyang, capital city of southwest China''s Guizhou Province, on Dec. 17, 2019. (Xinhua/Liu Xu)

A worker welds steel structures at the Gaimao Railway Port in Guiyang, capital city of southwest China''s Guizhou Province, on Dec. 17, 2019. (Xinhua/Liu Xu)

Aerial photo taken on Dec. 17, 2019 shows a view of the Gaimao Railway Port in Guiyang, capital city of southwest China''s Guizhou Province. (Xinhua/Liu Xu)

Workers operate along tracks at the Gaimao Railway Port in Guiyang, capital city of southwest China''s Guizhou Province, on Dec. 17, 2019. (Xinhua/Liu Xu)