Everest has the highest altitude on the planet.

珠峰则是地球上海拔最高的山峰。

The ICBM reached an altitude as high as 2,800 miles.

这枚洲际导弹到达了2800英里的高空。

The Dragon Capsule took them to an altitude higher than the international space station.

“龙”太空舱将他们带到了比国际空间站更远的轨道。

Under the right conditions, experienced pilots can reach very high altitudes and stay aloft for hours.

在正常情况下，资深飞行员能够将飞机飞到很高的高度，并能够持续飞行几小时。

If we are running at altitude – high up — the limbs get tired because there's not enough oxygen.

如果我们在海拔很高的地方跑步，我们的双腿会很累，因为没有足够的氧气。

Each of these valleys has an altitude higher than 2000 meters and altogether the valleys are 49 kilometers long.

平均海拔超过2000米单程全长49公里。

He glanced up at the coverflight, noting the altitude—not too high.

他抬头看了一眼封面，注意到海拔高度——不太高。

They flew at faster and faster speeds, reaching higher and higher altitudes.

他们飞得越来越快， 飞到越来越高的高度。

I was just thinking that it's really ironic that the place that we just got back from a couple of weeks ago was very high altitude.

我在想，几周前我们刚从海拔很高的地方回来，这真的令人啼笑皆非。

In the heart of the mountain is a secluded valley with fresh water springs and shelter from the harsh winds that sometimes ravage the higher altitudes.

山的中心是一个僻静的山谷， 有淡水泉水， 可以躲避有时会肆虐高海拔地区的强风。

Ten thousand metres, or 10 to the 4 metres, this is the distance a supersonic plane travels in 10 seconds, and we're now reaching the highest altitude flown by such a plane.

一万米，或10到4米，这是一架超音速飞机在10秒内行进的距离，我们现在正在达到这种飞机飞行的最高高度。