![](http://www.ecns.cn/hd/2020/01/07/8ed8d31b9f66434ba14d4c4be738de6b.jpg)
Photo taken on Jan 6, 2020 shows the scene of a frozen waterfall in the Qilian Mountains, Zhangye city, Northwest China's Gansu province.(Photo: China News Service/Wu Xuefeng)
![](http://www.ecns.cn/hd/2020/01/07/420f940bbcae491b9c094d8f06a7e2b9.jpg)
Photo taken on Jan 6, 2020 shows the scene of a frozen waterfall in the Qilian Mountains, Zhangye city, Northwest China's Gansu province.(Photo: China News Service/Wu Xuefeng)
![](http://www.ecns.cn/hd/2020/01/07/82e8d9e296774ec99f8f1936a935ef42.jpg)
Photo taken on Jan 6, 2020 shows the scene of a frozen waterfall in the Qilian Mountains, Zhangye city, Northwest China's Gansu province.(Photo: China News Service/Wu Xuefeng)
![](http://www.ecns.cn/hd/2020/01/07/4e8d8e829c994e16ac2060173a6f60ad.jpg)
Photo taken on Jan 6, 2020 shows the scene of a frozen waterfall in the Qilian Mountains, Zhangye city, Northwest China's Gansu province.(Photo: China News Service/Wu Xuefeng)