A bulldozer cleans snow in Zhaqing Town of Zaduo County of Yushu Tibetan Autonomous Prefecture, northwest China's Qinghai Province, Feb. 14, 2019. After days of snow storms, roads in many areas of Yushu Tibetan Autonomous Prefecture are covered under snow as deep as 45 centimeters. Local authority of Zaduo has sent 37 large machines to the blizzard-hit areas to clear the snow-covered roads. (Xinhua/Zhang Long)