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

几千米高空可不安全！

They discovered that the birds have a highly specialized strategy for staying aloft.

他们发现，军舰鸟高空拥有高度专业化策略。

They get up into high altitude air currents.

它们可以进入高空气流。

Yaboynath asks, " Why do commercial planes fly at 35,000 feet? "

Yaboynath 问：“为什么商用机 35000 英尺高空？”

Besides the airport crowds and stress, travelling at a high altitude has real effects on the body.

除了机场拥挤和压力以外，高空确实会对身体产生实质性影响。

It was flying at a height of around 10-thousand meters.

发时机1万米高空正常。

On Saturday, a missile took down an object flying at 40,000 feet over Central Yukon,way up in northwestern Canada.

周六，一枚导弹击落了一个加拿大西北部育空中部地区4万英尺高空物体。

High-flying drones, like those employed by the police for surveillance, will normally be out of range of such activity.

高空无人机，比如那些被警方用于监视无人机，通常会超出这种活动范围。

Dinosaurs used air sacs to move air along their massive necks. Birds use air sacs to stay aloft for long periods.

恐龙利用气囊使空气庞大颈部流动。鸟类利用气囊保持长期高空。

Hang gliders, paragliders and all kinds of high flyers went soaring through the air for a wide range of prizes.

悬挂式滑翔机、滑翔伞以及各种各样高空装备空中翱翔，来获得各种各样奖品。

Damien Jacques is an expert in remote sensing - the use of satellites or high-flying aircraft to collect information about the Earth.

达米安？雅克是一位遥感专家，即利用卫星或高空器收集地球信息。

Those objects were flying at around forty thousand feet and had balloon-like features with a small metal cylinder underneath officials said.

官员们说，这些物体大约4万英尺高空，具有气球状特征，下面有一个小金属圆筒。

Attached with a powerful zoom camera, the Shark drone can make out text while flying more than a mile above ground.

配有强大变焦摄像头，“鲨鱼”无人机可以离地面超过一英里高空时辨认文字。

The aircraft was flying at a height of 10,000 metres.

【height】机 1 万米高空。

Look, at the end of the day, Apple's apple is flying at 30,000 feet.

看, 一天结束时候, 苹果苹果3万英尺高空。

One day, during a high-flying act, Max found himself trapped in a net.

有一天, 一次高空表演中, 马克斯发现自己被困网中。

Now, it's true that one of the benefits of flying at 30,000 ft is a smoother ride.

现，确实， 30,000 英尺高空好处之一就是更加平稳。

Earhart set a record for the highest-flying female pilot when she flew 14,000 feet above the ground.

埃尔哈特距地面 14,000 英尺高空，创下了高度最高女员纪录。

The plane levelled out at 30,000 feet.

【level】机 3 万英尺高空水平。

Courtship displays include high  circling flight by the male and dramatic dives and chases by both falcons.

求偶表演包括雄性猎鹰高空盘旋和两只猎鹰戏剧性俯冲和追逐。