天空里的光，特别当被飞行员看到的，也可以引起骚动，但它几乎总是被揭露为其他飞行器运行时的灯光，或者是气候研究用飞行器所放下的照明弹。

Lights in the sky, especially when viewed by pilots, can also cause a stir, but are almost always revealed to be running lights of other aircraft, or flares dropped by weather research craft.

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利用布朗大学发明的技术，研究人员扫描了鸟儿的骨骼，同时还对鸟儿飞行时进行了三维X光扫描。

Using technology developed at Brown University, researchers scan birds' bones and combine that with three-dimensional X-rays taken in flight.

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当我沿着这条光的道路前行时，我渐渐知道存在运动的各个层次。

As I move along this path of light I gradually become conscious of various levels upon which there is movement.

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