So ten kilometers, that's ten times a thousand meters, that's 10,000 meters.

10千米就是10乘以1000米，也就是10，000米。

It's hard to believe that half the class couldn't complete the three-thousand-meter race, isn't it?

班上有一半的学生都完成不了三千米的长跑真是难以置信啊，不是吗？

The Gotthard Railway Tunnel is 57 kilometers long.

圣哥达铁路隧道全长57千米。

Yes, it's about 12 kilometres from the airport, but there's a complimentary shuttle bus for guests.

是的，距离机场大概12千米，但是客提供免费接送机服务。

With a total of over 20,000 kilometers, China has the world's longest high-speed rail network.

中国的高铁线总长达两多千米，有世界上最长的高铁线路网。

The quake hit at a relatively shallow depth of 11-kilometers, intensifying the shaking.

此浅源，源深度11千米，动明显。

It's a guided walk of about seven kilometres.

这是个有向导的步行之旅，大概七千米。

There's 14 kilometers of tunnels and bridges, like one we're traveling through right now.

其中包含14千米的隧道和桥梁，就像我们现在正在穿越的这个一样。

Greenland's ice sheet is three times the size of Texas and almost 2 kilometres thick.

格陵兰岛的冰原面积是德克萨斯州的三倍，其厚度近2千米。

Imagine a giant ice cube 1 kilometre by 1 kilometre by 1 kilometre.

想象一个巨大的冰块，长宽高都是1千米。

And anything below a thousand meters is sequestered almost forever.

海底一千米以下的物几乎被永久封存了。

Flying thousands of feet up in the sky, you know, that's not safe!

在几千米高空飞行可不安全！

The parklands have 3.2 kilometres of walking and running paths for Apple style.

园区内还有3.2千米的带有苹果风格的人行道和跑道。

In some places it is a few thousand meters deep.

在一些方它有几千米深。

Well, this run in the park is only five kilometres.

好的，这公园跑步只有5千米。

They won't go faster than 42 kilometers an hour, and that's pretty fast.

这东两的时速不超过42千米，可是这样就已经很快了。

But, the end of the road in Los Angeles is still a 500-kilometer drive away.

但是距离这条路的终点洛杉矶还有五百千米要开。

One kilometer down, we reach 100 atmospheres.

1 千米下，我们达到 100 个大气压。

So it takes more than four hours to go a kilometer? Wow!

所以这种动物移动1千米要超过4个小时的时间？哇！

For the first few hundred kilometres of the journey, the scenery was very colourful.

在在最初几百千米的旅途中，景色多姿多彩。