She take a helicopter flight.

它一定是一架直升飞机。

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Take a look and you'll see quality and creative 3d model of helicopter!

看一看，你会看到3d模型直升机的优质和创意！

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So what does it take to make a helicopter stealthy?

怎样让一架直升机隐形呢？

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A helicopter is able to take off and land straight up and down.

直升飞机可以直上直下地起落。

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A helicopter is able to take off and land straight up and down.

直升飞机可以直上直下地起落。

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