Cargos are seen on the railway at Erenhot Port in north China's Inner Mongolia Autonomous Region, April 3, 2018. China's GDP reached 19.88 trillion yuan (about 3.2 trillion U.S. dollars) in the first three months of 2018, up 6.8 percent year on year at comparable prices, according to the National Bureau of Statistics (NBS). (Xinhua/Tang Zhe)