
Citizens wait for the subway train at subway station in Changchun, capital of northeast China's Jilin Province, June 30, 2017. Subway line one in Changchun started operation on Friday. (Xinhua/Lin Hong)

Citizens wait for the subway train at subway station in Changchun, capital of northeast China's Jilin Province, June 30, 2017. Subway line one in Changchun started operation on Friday. (Xinhua/Lin Hong)