
People enjoy the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province, Nov. 22, 2020. (Photo by Zhang Chunxiang/Xinhua)

Aerial photo taken on Nov. 22, 2020 shows the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province. (Photo by Zhang Chunxiang/Xinhua)

People enjoy the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province, Nov. 22, 2020. (Photo by Zhang Chunxiang/Xinhua)

People enjoy the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province, Nov. 22, 2020. (Photo by Zhang Chunxiang/Xinhua)

People enjoy the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province, Nov. 22, 2020. (Photo by Zhang Chunxiang/Xinhua)

People enjoy the scenery of rime-covered trees along the Mudanjiang River in Ning'an City, northeast China's Heilongjiang Province, Nov. 22, 2020. (Photo by Zhang Chunxiang/Xinhua)