The orbit of this comet intersects the orbit of the Earth.
这颗彗星的轨道和地球的轨道相交。
Orbit the moon travels in an orbit around the earth.
月亮在绕着地球的轨道上运行。
Its orbit is within the earth's orbit.
它在地球的轨道上做环形运动。
As the electrons jump from orbit to orbit, light is produced.
当电子在轨道间跳来跳去时，光产生了。
The spacecraft is in orbit (ie moving in orbit) round the moon.
该航天器在绕月球轨道上飞行。
The spacecraft is in orbit (ie moving in orbit) round the moon.
该航天器在绕月球轨道上飞行。
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