Vehicles run on the snow-covered Huyu Expressway in Enshi, central China's Hubei Province, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Zhu Wei)

Staff members at Changzhou Airport remove ice from the plane in Changzhou, east China's Jiangsu Province, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Chen Wei)

A snow grader cleans up snow on a dangerous road in Nanzhang County, central China's Hubei Province, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Xiong Mingyin)

Traffic policemen push a car on a snow-covered road in Nanzhang County, central China's Hubei Province, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Xiong Mingyin)

Railway staff members coat the rail with antifreeze in Wuhan, capital of central China's Hubei Province, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Zhao Jun)

The police direct traffic amid snow at an expressway entrance in Yinchuan, capital of northwest China's Ningxia Hui Autonomous Region, Jan. 4, 2018. Many places across China saw snowfall from Wednesday. (Xinhua/Wang Peng)