(It takes about 365 days for the earth to make a complete revolution around the sun.) In contrast, the moon takes 29 days or so to make a complete cycle around the earth.
(地球绕太阳公转一周约365天)，对比起来，月球约用29天左右绕地球一周。
(It takes about 365 days for the earth to make a complete revolution around the sun.) In contrast, the moon takes 29 days or so to make a complete cycle around the earth.
(地球绕太阳公转一周约365天)，对比起来，月球约用29天左右绕地球一周。
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