Passengers wait for a train at the Zhangqiu Railway Station in east China's Shandong Province, July 1, 2020. China's railway network is expected to see growth of passenger trips. (Xinhua/Wang Kai)

A passenger boards a train at the Zhangqiu Railway Station in east China's Shandong Province, July 1, 2020. China's railway network is expected to see growth of passenger trips. (Xinhua/Wang Kai)

Passengers wait for a train at the Zhangqiu Railway Station in east China's Shandong Province, July 1, 2020. China's railway network is expected to see growth of passenger trips. (Xinhua/Wang Kai)

Passengers wait to take a train at the Zhangqiu Railway Station in east China's Shandong Province, July 1, 2020. China's railway network is expected to see growth of passenger trips. (Xinhua/Wang Kai)