这颗卫星在那时可能与土星外的气态光环发生了作用，造成它的轨道越来越靠近土星。

That moon would have interacted with a disk of gas surrounding Saturn at the time, dragging its orbit closer and closer.

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旅行者除了帮助我们增进对土星的卫星了解外，还使我们丰富了有关土星光环的知识。

In addition to helping us learn more about Saturn's moons, voyager added to our knowledge of Saturn's rings.

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