As a result, the International Union for the Conservation of Nature estimates that as many as a third of all shark species are threatened or near threatened with extinction, including the great white.
根据国际自然保护联盟的估计，由此带来的结果是高达三分之一的全部种类的鲨鱼都面临或接近面临着绝种的危险，这其中就包含电影中的大白鲨。
Amphibians are the most threatened group of animals worldwide, with a third of the world's species in danger of extinction.
在全球范围内的动物当中，两栖类受到灭绝的威胁最大。有三分之一的两栖类已在灭绝的边缘。
The third largest extinction in Earth's history, the Ordovician-Silurian mass extinction had two peak dying times separated by hundreds of thousands of years.
作为地球史上消亡物种排行第三的大灭绝，奥陶系-志留纪大灭绝有两个死亡高峰期，其中相隔数十万年时间。
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