The Earth orbits in an ellipse.

地球沿椭圆形轨道运动。

《柯林斯英汉双解大词典》

In comparison, the Earth orbits at just 1 AU.

相比之下，地球轨道只是一个天文单位。

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Meteor showers occur when Earth orbits through clouds of particles and dust on its path around the sun.

流星雨是地球在绕太阳运行的轨道上穿过微粒和尘埃团时产生的。

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The debris now circles the Earth in orbits from two hundred kilometers to over three thousand eight hundred kilometers.

VOA: special.2009.04.01

Hubble orbits about six hundred kilometers above the Earth's surface.

VOA: special.2009.09.30

Kindly allow me the prejudice of summing up my own generation: We think the Earth orbits around us.

FORBES: Populism, Age and the Nostalgia Trap

The difference arises mainly because Iridium's satellites are both more numerous and use more power to maintain their low-earth orbits.

ECONOMIST: Is Iridium about to fall to earth?

In A Study in Scarlet, the first-ever Holmes adventure, Dr. Watson realizes that Holmes was unaware that the earth orbits the sun.

FORBES: Remember: Comedy is Easy, Change is Hard