一些物体，比如一些旧的太空火箭或卫星碎片，在地球上以非常高的速度运动，速度如此之快，以至于一个非常小的碎片都能破坏重要的卫星或对宇航员造成危险。

Objects, like bits of old space rockets or satellites, move around the planet at very high speeds, so fast that even a very small piece can break important satellites or become dangerous to astronauts.

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这些火车能达到非常高的速度。

These trains are capable of attaining very high speeds.

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它们都在运动，以非常非常高的速度运动。

And they are in motion and moving at very, very high speed.

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And they are in motion and moving at very, very high speed.

它们都在运动,以非常非常高的速度运动。

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