Avalanches(雪崩)areoneofthosenaturaldisastersthatcancaus...
问题详情： Avalanches(雪崩)areoneofthosenaturaldisastersthatcancausegreatdamageandonlyMotherNatureknowswhenandwheretheyaregoingtooccur.Evenwithmoderntechnologyitisstillimpossibletoknowexactlywhenorwher...