Om du inte kan se den här videon stöder din webbläsare inte HTML5-videor
För att se den här videon, aktivera JavaScript och överväga att uppgradera till en webbläsare somsupports HTML5 video
Beginning of dialog window. Escape will cancel and close the window.
End of dialog window.
A dam burst on Dongting Lake in Hunan province. Water gushed out of the breach at high speed. About 5,000 residents had to be evacuated.
This kind of blocking method is also very strange. This is the first time I've seen it like this.