A visitor visits an unmanned vaccination cabin exhibited for the first time by Sanofi, a global biopharmaceutical company, at the public health and epidemic prevention exhibition area of the 3rd China International Import Expo, Nov. 6, 2020. (People''s Daily Online/Zhai Huiyong)

Photo taken on Nov. 4, 2020, shows workers busy producing face masks for overseas customers at a medical device company in southwest China's Guizhou province. (People's Daily Online/Chen Xi)

A freight train leaves Zalantun, north China''s Inner Mongolia autonomous region, for countries along the Belt and Road, Jan. 13, 2021. The train was also the first freight train carrying export cargo from Zalantun to Belt and Road countries. (People''s Daily Online/Han Yingqun)