A China-Europe freight train pulls out of the Lianyungang Port at Lianyungang, east China's Jiangsu Province, April 12, 2020. In the first quarter of this year, China-Europe freight trains made 1,941 trips and transported 174,000 TEUs (20-foot equivalent units) of freight, up 15 percent and 18 percent year on year, respectively, data from the China State Railway Group Co., Ltd. showed. (Photo by Wang Jianmin/Xinhua)

A China-Europe freight train pulls out of the Lianyungang Port at Lianyungang, east China's Jiangsu Province, April 12, 2020. In the first quarter of this year, China-Europe freight trains made 1,941 trips and transported 174,000 TEUs (20-foot equivalent units) of freight, up 15 percent and 18 percent year on year, respectively, data from the China State Railway Group Co., Ltd. showed. (Photo by Wang Jianmin/Xinhua)

In this aerial photo, a China-Europe freight train pulls out of the Lianyungang Port at Lianyungang, east China's Jiangsu Province, April 12, 2020. In the first quarter of this year, China-Europe freight trains made 1,941 trips and transported 174,000 TEUs (20-foot equivalent units) of freight, up 15 percent and 18 percent year on year, respectively, data from the China State Railway Group Co., Ltd. showed. (Photo by Wang Jianmin/Xinhua)