A train carrying 33 refrigerated containers departs from the Tengjun International Land Port in Kunming, capital of southwest China's Yunnan Province, for Laos, Dec. 4, 2021.Photo:Xinhua
A train carrying 33 refrigerated containers departs from the Tengjun International Land Port in Kunming, capital of southwest China's Yunnan Province, for Laos, Dec. 4, 2021.Photo:Xinhua