A worker returning from southwest China's Guizhou Province displays the QR code showing physical condition for checking upon arriving at Hangzhou East Railway Station in Hangzhou, east China's Zhejiang Province, Feb. 16, 2020. The customized train for returning workers left Guiyang, capital of Guizhou Province, Sunday afternoon, carrying nearly 300 workers from Guizhou who are returning to work in Hangzhou, capital of Zhejiang Province, the first such train service in China after the Spring Festival. (Xinhua/Huang Zongzhi)
