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【英语时差8,16】糖罐子里的秘密（上）

时间：2015-11-30 07:22:30

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（单词翻译）

If you’ve ever had to dig a hole and then fill it back in, you may have noticed a mysterious thing: there was always a little dirt left over. This can often be seen when construction crews dig down to get at sewer1 pipes or electric cables. But how can there be more dirt going in than there was coming out? The answer is that the amount of soil itself remains2 the same; what has changed is the arrangement of the individual grains. To see how this happens, think of a sugar bowl. If every crystal of sugar is evenly spaced, the ratio of crystals to empty space will be 60 – 40. That’s true no matter how big the bowl: 40% of the inside will always be empty.


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1 sewer 2Ehzu     
n.排水沟，下水道
参考例句：
  • They are tearing up the street to repair a sewer. 他们正挖开马路修下水道。
  • The boy kicked a stone into the sewer. 那个男孩把一石子踢进了下水道。
2 remains 1kMzTy     
n.剩余物，残留物；遗体，遗迹
参考例句：
  • He ate the remains of food hungrily.他狼吞虎咽地吃剩余的食物。
  • The remains of the meal were fed to the dog.残羹剩饭喂狗了。

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