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. Everyone was curious to see those young men fresh from Europe, still wearing their white linen shirts and striped waistcoats and buckled shoes.
    大家都好奇地看着这两个刚从欧洲来的青年人，他们俩人依然欧洲打扮，身穿雪白细麻衬衣，花条呢背心，带靴扣的皮靴。

5. 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。

6. 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。

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

8. Beware of methylated alcohol, which is very poisonous, and should never be added to drinking water.
    要提防甲基化酒精，那是剧毒的，永远不能掺入饮用水。

9. Before long, the noise dropped completely and the boat began to drift gently across the water.
    没过多久，噪音便彻底消失，快艇开始在水面上慢悠悠地漂流。

10. Babies of two months old do not appear to be reluctant to enter the water.
    两个月的婴儿并未显得不愿意入水。

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