它将在300千米的高度绕地球运行。

It will travel around the Earth at a height of 300 km.

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月亮绕地球运行。

The moon rolls about the earth.

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同样，在外太空中，当您绕地球运行时，人们总是在这些空间站中四处漂浮。

Likewise, when in outer space, when you are orbiting the Earth, people are always floating around in these space stations.

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Likewise, when in outer space, when you are orbiting the Earth, people are always floating around in these space stations.

就好比在外太空,当你在绕地球运行时,宇航员总是悬浮在太空站

耶鲁公开课 - 基础物理课程节选