When two objects in space collide, thetwo objects break into many smaller pieces.

当两个物体在太空中相撞时，这两个物体会分裂成更小的碎片

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To make things worse, when two objects in space crash, they break into many smaller pieces.

更糟糕的是，当两个物体在太空中相撞时，它们会分裂成许多更小的碎片。

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Astronomers use the observatory to study the positions and movements of the Earth, sun,moon and other objects in space.

VOA: special.2009.09.21

But it's not a big con, because you can set up experiments in free space far from everything, where objects will, in fact, maintain their velocity forever.

但这并不是个反例,因为你可以在一个远离一切的空间里做实验,在那里,物体可以永远保持现有速度

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You can anchor things to objects in outer space.

你能将一些东西固定在外太空中的物体上

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