月亮绕地球运行轨道为椭圆形而非正圆。所以月亮绕地球运动的过程中,有时月亮会离地球近一些,而有的时候离地球远一些。
The moon's orbit is elliptical rather than perfectly circular, so as the moon moves around the Earth it is sometimes a little bit closer and sometimes a bit further away from us.
月亮绕地球运行轨道为椭圆形而非正圆。所以月亮绕地球运动的过程中,有时月亮会离地球近一些,而有的时候离地球远一些。
The moon's orbit is elliptical rather than perfectly circular, so as the moon moves around the Earth it is sometimes a little bit closer and sometimes a bit further away from us.
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