In prehistoric times, it stood on dry land.

在史前时期，它位于陆地上。

It was rather like an exhibition of prehistoric electronic equipment.

这儿倒像是在展览古老的电子设备。

Look, even prehistoric people look at the stars.

看，就连史前人类也会看星星。

Utah is a very rich place for prehistoric culture.

犹他州是史前文化非常丰富的地方。

This could be the earliest known instance of prehistoric humans storing food.

这可能是史前人类储存食的已知最早的例证。

Prehistoric ground sloths first appeared around 35 million years ago.

约3500万年前， 史前懒兽开始出现。

And prehistoric people were the first creatures to do so.

史前时期的人类是能够这样做的最早的。

And it leads from prehistoric times to the present day.

时间为从史前至今。

A prehistoric stone circle emerges from a drying up reservoir.

一个史前环状巨石阵从干涸的水库中浮现出来。

She had found the skeleton of a prehistoric reptile — the ichthyosaur.

她发现了一种史前爬行动——鱼龙的骨架。

These are dinosaurs that would have lived in prehistoric North Carolina.

这些恐龙可能活在史前的北卡罗来纳。

And prehistoric paintings in Japan portray Sumo wrestlers.

而日本的史前绘画则描绘了相扑运动员。

Some prehistoric people tried living there starting about 20,000 years ago.

约2万年前起史前人就试图在这片土地上居住。

But we still know something about the people whom we call prehistoric.

不过我们还知道一些被我们称之为史前人类的情况。

Yu then established order and dynastic rule with the prehistoric Xia dynasty.

禹随后建立了史前夏朝的秩序和王朝统治。

Okay. A person who studies prehistoric life through the examination of fossils.

通过检查化石来研究史前命的人。

Prehistoric plant eaters live every day with a target on their back.

史前世界的食草动每天都活在弱肉强食的环境中。

This three-dimensional image has come to us straight from the prehistoric age.

这个三维图像从史前时代直接存留至今。

Yet they don't hold a bicep to prehistoric female farmers.

但是，和史前女农民相比，这些运动员可以说没有什么臂力。

The wedge is a simple machine that's been used since prehistoric times.

楔子是一种简单机器，从史前时代就开始使用了。