Railway workers examine falling rocks to ensure security in Chongqing, SW China
Xinhua,February 09, 2018 Adjust font size:
A railway worker searches on the cliff for falling rocks which might interrupt railway operation in Qianjiang District of Chongqing, southwest China, Feb. 7, 2018. Railway workers here examine falling rocks every day to ensure the security of running trains. (Xinhua/Yang Min)