Aerial photo taken on Nov 28, 2017 shows the 666-meter-depth doline in Xiaozhai village of Fengjie county, Southwest China’s Chongqing.[Photo/Xinhua]
Aerial photo taken on Nov 28, 2017 shows the 666-meter-depth doline in Xiaozhai village of Fengjie county, Southwest China’s Chongqing.[Photo/Xinhua]
Aerial photo taken on Nov 28, 2017 shows the 666-meter-depth doline in Xiaozhai village of Fengjie county, Southwest China’s Chongqing.[Photo/Xinhua]