【彩神APP争霸vapp_彩神APP争霸vapp官网】Workers examine falling rocks to ensure safety in China's Inner Mongolia

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Maintenance workers climb a steep slope to examine rock falling along a railway route in Hohhot, north China's Inner Mongolia Autonomous Region, Feb. 6, 2018. Railway workers here examine falling rocks by climbing a steep slope with a safety rope to ensure the security of running trains. (Xinhua/Peng Yuan)

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