My computer crashed and I lost all of my work.

Apparently the problem was caused by the wrong date on my computer.

显然,问题是由于错误的日期在我的电脑上.

There is something wrong with the power unit of my computer.

我电脑的电源出了毛病.

I am sitting in front of my computer, typing these words.

我现在坐在电脑前, 打下这些字.

Let me check my computer.

让我在计算机上查一查.

Yes, and something else, please ask when you use my computer.

是的, 还有, 你用我电脑时请先问我一下.

How do you start to get close to animals that lived hundreds of millions of years ago?

你怎么才能接近生活在数亿年前的动物？

The giant river valleys, created millions of years ago,

形成于千百万年前的巨大河谷

When we were ancient man a millions of years ago,

当我们是古人的时候，几百万年以前，

Oil and coal come from the plants and animals that died millions of years ago.

石油和煤都来自几百万年前动植物的尸体。

Why were redwood trees more prominent in the forests of North America millions of years ago?

为什么红杉在数百万年前的北美森林里较常见？

They lived on the earth tens of millions of years ago, long before humans came into being

千百万年前它们（恐龙）就在地球上生活，比人类的出现要早得多

So how on earth have we worked out so much about animals that lived millions of years ago?

因此我们到底要怎么去了解数百万年以前的动物？

The energy which coal provides is the solar energy which was stored by plants millions of years ago.

煤提供的能量是千百万前的植物储存的太阳能。

Giant pandasare thought tohave originated in southwest China, millions of years ago,

大熊猫被认为在几百万年前起源于中国的西南部

Dinosaurs lived millions of years ago.

恐龙生活在数百万年前。

Cancer has probably existed ever since our first multicellular ancestors appeared on Earth hundreds of millions of years ago.

在我们最早的多细胞生物祖先于数亿年前在地球上出现时，癌症可能就已经存在。

The exhibition at the natural history museum includes fossils of amphibious creatures from millions of years ago.

自然历史博物馆的展览包括数百万年前水陆两栖动物的化石。

Mountains that we see here today aren't the mountains that were around millions of years ago.

我们今天在这里看到的山，与大约百万年前的山是不一样的。

The print of geological events that happened millions of years ago is the best pledge.

那些被亿万年的地质变迁雕琢过的印记，是我给你最好的信物。

Dinosaurs died out millions of years ago.

恐龙几百万年前灭绝了。