As a companion star orbits its primary , it alternately approaches and recedes from the Earth.

当伴星围绕着主星运转时, 它交替地朝着地球或背离地球运转.

辞典例句

Matter from the one which we can see is being pulled companion star.

来自我们所看到的星的物质正被吸引到伴星去.

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All over the desert we distribute lion bait containing amounts the companion star of Sirius.

在整个沙漠中我们投放大量含有大量天狼伴星的狮子诱饵.

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Matter from the one which we can see companion star.

只是我们看到的星系的一部分.

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