Pilots can fly above a war zone and drop thousands of small wireless sensors, the size of a small pebble and costing a dollar apiece, over the terrain.

飞行员可以在战区上空飞行，在地面上扔下数千个小型无线传感器，每个传感器只有一块小鹅卵石大小，价格为1美元。

youdao

Did you see a plane fly above us?

你看见一架飞机从我们的头顶上空飞过吗？

youdao

The young pilot will fly above the Atlantic tomorrow.

那位年轻的飞行员明天将在大西洋上空飞过。

youdao

It shows two ducks that have just been shot by a hunter as they fly above the surface of a wide expanse of water.

VOA: special.2010.07.25

For the few who don't know, Yeager's the first human to fly above Mach 1, the speed of sound.

CNN: Where planes go to die

The Russians all speak English, flags representing the guests' nationalities fly above the camp and the tundra is kept absolutely spotless.

FORBES: Catch and Release

Within the R160 controlled area, for example, they must fly above the River Thames, which minimises the risk of crashing into a built-up area.

BBC: London helicopter crash: What are the rules for pilots?