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。
Whale tails have a distinct pattern on their underside, much like our fingerprints. At 30 metres long, the blue whale is largest animal on the planet.
和人的指纹一样，每只鲸鱼的尾巴底面有它独有的斑纹形状。蓝鲸身长可达30米，是地球上最大的动物。
Which is the largest planet in our solar system.
为什么？它是最大的行星因为它有最长的直径。
The earth is the fifth-largest planet in our solar system .
在我们的太阳系地球是第五大行星。
Thee American space agency NASA has flown a probea few thousand kilometres from the swirling cloudtops of Jupiter, the largest planet in our solarsystem.
美国宇航局NASA发射了一个探测器，距太阳系最大行星木星的漩涡云顶仅有几千公里。
It's the 5th planet outward from the sun, and the largest and most massive planet of our solar system.
它是除太阳以外的第五大行星，也是在太阳系中体积最庞大，最重的。
It's the 5th planet outward from the sun, and the largest and most massive planet of our solar system.
它是除太阳以外的第五大行星，也是在太阳系中体积最庞大，最重的。
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