1. Whether a planet can support life depends on the size and brightness of its star, that is its ´sun´.
    一颗行星是否能够维持生命取决于它的恒星--即它的"太阳"--的大小和亮度。

2. We are very busy here and life is very interesting.
    我们这儿很忙，生活也很有意思，

3. We all knew about old Maggie´s hard life because she was so fond of talking about it.
    我们对马吉的艰辛生活都了如指掌，因为她很喜欢谈论这些事情。

4. Water gives life to our planet.
    水给我们的星球带来了生命。

5. Water is the source of this beauty and the source of life on Earth.
    水是地球上的美丽之源、生命之源。

6. Working hard involves being organized, focused, getting a lot of work done, knowing when to stop, and having a life other than work.
    努力工作是指工作有条有理、精力集中，完成许多工作，知道何时歇手，知道除了工作还有生活。

7. It still seemed no more related to my daily life than a "60 Minutes" program.
    这件事还好像是一档"60分钟"的节目一样与我的日常生活没有任何关系。

8. What remained of the life he had made was blown to bits though his home was more than a mile from ground zero.
    尽管他家与原子弹爆炸中心相距1英里，但是他所营造的生活中的一切还是被炸成了碎片。

9. Would your twin live a shorter life because he or she started out with DNA that was already 10, 20, or 30 years old?
    你的孪生兄弟或姐妹出生时DNA就已经10、20或30岁了，难道就因为这样他或她的寿命会更短吗？

10. While the reasons for entering the work force may vary from country to country, women everywhere are finding that to give their children an adequate life, getting a job is no longer optional.
    尽管加入工作大军的原因可能因国而异，但各地的妇女都发现，要让孩子丰衣足食，惟一的选择就是找一份工作。