1. The problems of numerous inhabitants on this small planet will continue to be important to each of us.
    在这个小小的星球上的芸芸众生所曾经遇到过的各种问题仍然是关系到我们每个人的重大问题。

2. The planet has survived major changes for millions upon millions of years.
    这个星球几十亿年来经历了种种重大变化仍能生存。

3. Now more than sixty years old, Barbara — who declines interviews but is said to have loved the doll - may be the most famous unknown figure on the planet.
    如今芭芭拉已有60多岁了，她拒绝接受采访，但据说非常喜欢芭比。她可能是当今世上真名实姓不为人知的最著名的人物。

4. Now that they are no longer ignorant of the causes of the sickness of our planet, they seek ways to help the Earth, to give back what they take away.
    由于不再无视地球罹难的根源，人们正在寻求各种方法来治疗它，把自己取走的东西归还给地球。

5. Now everyone must protect planet Earth, a planet in danger.
    如今人人必须保护地球，保护这个身处险境的星球。

6. Despite their short time on Earth, however, people have brought about enormous changes to the surface of the planet — changes far out of proportion to the interval of time they have occupied it.
    然而，尽管在地球上的时日尚短，人类却已给地球表面带来了巨大的变化——这些变化与人类占据地球的短暂时间相比，是远远不成比例的。

7. A planet would have to be a very long way from it to be capable of supporting life.
    那么一颗行星为了维持生命就要离开的它的恒星非常远。

8. Alternatively, if the star were small, the life-supporting planet would have to have a close orbit round it and also provide the perfect conditions for life forms to develop.
    反之，如果恒星很小，维持生命的行星就要在离恒星很近的轨道上运行，而且要有极好的条件才能使生命得以发展，

9. A telescope would have to be as far away as the planet Jupiter to look for life in outer space,
    望远镜要放置在木星那样遥远的行星上才有可能在外层空间搜寻生命。

10. A billion years later, the planet had cooled, and the continents and the great bodies of water had formed.
    10亿年后，这个星球冷却下来，于是形成了大陆和大片大片的水域。