A hoar frost transforms the landscape along the bank of the Yellow River in Guide County, Northwest China's Qinghai Province, Jan. 21, 2019. Local temperatures dropped to minus 14.7 degrees. (Photo: China News Service/Wei Tao)
A hoar frost transforms the landscape along the bank of the Yellow River in Guide County, Northwest China's Qinghai Province, Jan. 21, 2019. Local temperatures dropped to minus 14.7 degrees. (Photo: China News Service/Wei Tao)
A hoar frost transforms the landscape along the bank of the Yellow River in Guide County, Northwest China's Qinghai Province, Jan. 21, 2019. Local temperatures dropped to minus 14.7 degrees. (Photo: China News Service/Wei Tao)
A hoar frost transforms the landscape along the bank of the Yellow River in Guide County, Northwest China's Qinghai Province, Jan. 21, 2019. Local temperatures dropped to minus 14.7 degrees. (Photo: China News Service/Wei Tao)