1. Who has not stood in awe at the sight of a spider pouncing on a fly, or a column of ants triumphantly bearing home an enormous dead beetle?
    当看到蜘蛛扑向一只苍蝇时，一队蚂蚁抬着一只巨大的死甲虫凯旋归时，谁能不感到敬畏呢?

2. Women of child-bearing age are at greatest risk, since their monthly bleeding is a major source of iron loss.
    育龄女性危险最大，因为月经是铁流失的重要原因之一。

3. 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。"

4. They were unloading an oil barge.
    他们正在从运油驳船卸货。

5. The country exports lots of crude oil.
    这个国家出口大量原油。

6. The substitution of coal for oil is desirable.
    以煤代替石油是可取的。

7. The tanker took on 200,000 barrels of crude oil.
    油轮装载了二十万桶原油。

8. The deepest holes of all are made for oil, and they go down to as much as 25,000 feet.
    在所有洞穴中，为寻找石油所钻出的洞是最深的，这些洞可深达25,000英尺。

9. This hobby educates one not only in the chosen subject, but also in general matters which have some bearing on it.
    这种爱好不仅能使人从选择的专题中受到教育，而且也能从与之有关的一般事物中获得长进。

10. The bird population is decreasing because of oil spills and spreading cities.
    由于海上石油泄漏和城市的不断扩大，鸟类的数量正在减少。