1. Extreme cold will solidify water.
    寒冷可使水凝固。

2. Every apartment house has a water tank on its roof.
    每栋公寓房子都有一个水塔。

3. Even if a piped water supply is safe at its source, it is not always safe by the time it reaches the tap.
    即使管道供水系统在水源处安全的，等水到达龙头时就不一定总是安全的了。

4. Even so, Mexico City continues to look good to the rural people who pour into the city.
    虽然如此，对拥入该城的乡村农民来说，墨西哥城仍是个好地方。

5. Evening came and a cold wind was blowing.
    傍晚来临，刮着寒风。

6. Engineers build huge storm pipes or sewers (污水沟) to carry the storm water away, but these cause another problem.
    工程师们就建造了巨大的雨水管道或下水道来把暴雨雨水排出去，但是这些设施会引起另一个问题。

7. Eleven cold, rainy days passed. Once he found some animal bones with no meat on them.
    冰冷的雨已经下了整整11天。有一次他发现了一些动物骨头，上面一点肉也没有。

8. Experimental data seem to indicate that the amount of radon (Rn) in the water under the surface of the Earth waxes before an earthquake.
    实验数据似乎表明，地震前地下水中氡的含量会增高。

9. But milk is a fluid.Don´t you think I´m supposed to drink a lot of fluids when I have a cold?
    但是牛奶是一种流质, 你不认为我感冒时应该多喝一些流质吗?

10. Boiling is always a good way of treating water.
    烧开一直是水处理的一种好办法。

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