A ski enthusiast is seen at the Lake Songhua Resort in Jilin, Northeast China's Jilin province, Dec 13, 2019. [Photo/Xinhua]

Enthusiasts ski at the Lake Songhua Resort in Jilin, Northeast China's Jilin province, Dec. 13, 2019. [Photo/Xinhua]

Enthusiasts ski at the Lake Songhua Resort in Jilin, Northeast China's Jilin province, Dec. 13, 2019. [Photo/Xinhua]

A ski enthusiast is seen at the Lake Songhua Resort in Jilin, Northeast China's Jilin province, Dec. 13, 2019. [Photo/Xinhua]

Enthusiasts ski at the Lake Songhua Resort in Jilin, Northeast China's Jilin province, Dec. 13, 2019. [Photo/Xinhua]

Aerial photo taken on Dec. 13, 2019 shows enthusiasts skiing at the Lake Songhua Resort in Jilin, Northeast China's Jilin province. [Photo/Xinhua]