The main purpose was to use the gravity of the largest planet in our solar system to slingshot Cassini towards Saturn, its ultimate destination.
其主要目的是利用太阳系中最大的一个的行星获得重力推动将卡西尼号弹向其最终目的地——土星。
It is the largest, loudest, longest-lived creature ever to exist on our planet. Yet it is elusive, and for all its magnificent bulk, barely seen.
它们是这个星球上最大,叫声最响,寿命最长的生物,但它又是那么难以捉摸,尽管身形巨大却很少有人睹其真容。
Clouds swirl on Saturn, the second largest planet in our solar system.
云层在土星上打漩涡,土星是太阳系中第二个大行星。
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