People walk on the street in Yongjing County, Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, March 4, 2016. Regions in Gansu like Lanzhou and Linxia greeted sandstorm on Friday. (Xinhua/Shi Youdong)
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People walk on the street in Yongjing County, Linxia Hui Autonomous Prefecture, northwest China's Gansu Province, March 4, 2016. Regions in Gansu like Lanzhou and Linxia greeted sandstorm on Friday. (Xinhua/Shi Youdong)
