1. 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。

2. Every solid object will reflect a sound, varying according to the size and nature of the object.
    任何固体者反射声音，反射的声音因物体的大小和性质的不同而不同。

3. Even the boom that happens when the jet breaks the sound barrier went unnoticed.
    也察觉不到飞机冲破声障时发出的隆隆声。

4. But he still did not feel safe enough.
    可是他还觉得不够安全.

5. Bonpland was doubtful whether, even then, it was safe.
    即使如此，庞普朗还是怀疑这水是否安全。

6. For their house, which had sound foundations, would have stood stoutly even if it had been almost submerged.
    因为他们的房子地基牢固，即使洪水几乎灭顶也不会倒塌。

7. When the bear was gone, and all was safe, the man in the tree came down.
     熊走了，一切都平安无事了。树上的人爬了下来，

8. While active, child-bearing age women are most likely to have low iron stores, he notes, "Men are not safe, especially if they don't eat meat and have a high level of physical activity."
    他还指出，虽然积极锻炼的育龄妇女最有可能铁离子储量低，"但男性也并非不缺铁，尤其是在他们不吃肉类而又从事高强度的体力活动的情况下。"

9. These words sound too literary to give them colloquial currency.
    这些词文绉绉的，不能作为口语使用。

10. The animals were put to flight by the sight and sound of the hunters.
    野兽一看到猎人或一听到他们的声音就逃跑。

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