太阳与月亮的引力作用使地球产生了潮汐现象。
The gravitational pull of the Sun and Moon cause the Earth to experience a phenomenon known as tides.
月球引起了每个白天的潮汐，同时也给自己带来了副作用——它正沿着螺旋状轨迹慢慢的远离地球。这个可以用岩石和化石上的线索加以证明的现象，昭示了这颗卫星最初和最终的命运。
The moon is slowly spiraling away from Earth as it drives day-stretching tides, a phenomenon recorded in rocks and fossils that provides clues to the satellite's origin and ultimate fate.
如此快速的运行轨道意味着被观测的行星离它们的母体恒星很近，也就是说很有可能出现潮汐锁定的现象。
Such rapid orbits mean the planets in question are close to their parent stars, and thus likely to be tidally locked.
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