突然、是不可预测的。自然灾害通常是剧烈的,其破坏力极大。持续时间有长有短。灾难包括了很多因素,它们会引起受伤和死亡,巨大的财产损失以及相当程度的混乱。一次灾难事件持续时间越长,受害者受到的威胁就越大,事件的影响也就越大。
另一个影响灾难程度的主要特征,是人们是否获得了足够的预警。
Suddenly, is unpredictable。 Natural disasters is usually fierce, with great destructive power。
The duration of a long short。 Disaster, including a lot of factors that would cause injuries and deaths, huge property losses and a considerable degree of confusion。
A disaster and the longer the duration of the incident, the victims are the greater the threat, the greater the impact of the incident。
Another impact of the disaster extent of the main features is that people are getting the adequate warning。