
Passengers sit on a train of Metro Line 2 in Nanchang, capital of east China's Jiangxi Province, Aug. 18, 2017. Parts of the Metro Line 2, the second metro line in Nanchang, started trial operation on Friday. (Xinhua/Peng Zhaozhi)

Passengers sit on a train of Metro Line 2 in Nanchang, capital of east China's Jiangxi Province, Aug. 18, 2017. Parts of the Metro Line 2, the second metro line in Nanchang, started trial operation on Friday. (Xinhua/Peng Zhaozhi)