纪录片《巨龙的奥秘》 第05期 植食恐龙（在线收听）

It's an immense plant-eater. It's perhaps 80 to 100 metric tonnes.

它是庞大无比的植食恐龙，可能有80～100吨重

It's the size of a herd of elephants.

换句话说，相当于一群大象

It may be that there are dinosaurs even bigger than Argentinosaurus.

可能还有比阿根廷龙更大的恐龙，只是还没有被发现

But at present, that's as big as we know any land-living creature has ever been.

但是目前而言，它是我们迄今所见生物史上最大的陆地动物

This replica of Argentinosaurus is being built for the town square in Plaza Huincul.

这只阿根廷龙模型将竖立在普拉萨乌因库尔镇中心广场

When it's finished, it will stand as tall as a five-storey building.

完成后它将有5层楼那么高

It wasn't just this dinosaur's size that was out of the ordinary.

这种恐龙的特别之处不仅只是体型

When scientists analyzed the layers of rock in which the skeleton was found, they discovered something.

当科学家们分析骨骼所在的岩层时，他们又有了新的发现

Argentinosaurus, along with many smaller South American long-necks, had been living at the wrong time.

阿根廷龙，连同许多较小的南美洲蜥脚类恐龙都生活在错误的年代

This fact was to prove crucial.

这一事实极为重要

Layers of fossil-bearing rock have shown that dinosaurs roamed the planet for 180 million years.

化石岩层显示这种恐龙生活在地球上的年代是1亿8千万年前

Over the course of this time, hundreds of different species evolved and died out.

在这个时代，有数百种恐龙进化和消亡

By the middle of their time on Earth, the Jurassic Period,

这个时代的中期是著名的侏罗纪

the land was dominated by massive plant-eating dinosaurs, the long-necks.

陆地上的统治者成了巨型植食恐龙--蜥脚类恐龙