1. These huge stone blocks weigh an average of two and a half tons each, as much as a small car.
    这些巨大的石块平均每块重２吨半，像一辆小型轿车那样重，

2. Two British scientists developed a sulfa that could cure pneumonia, a disease that up to that time had caused thousands of deaths yearly.
    英国两位科学家研制了一种可以医治肺炎的磺胺药。在研制出此药之前，每年都有成千上万人死于肺炎。

3. The recipient, a two-and-a-half-week-old baby boy, died six hours later.
    这个出生仅两周半的男婴在接受手术六小时后便停止了呼吸。

4. Then we see just half of the circle shining.
    那么，我们只看到圆月一半发亮，

5. The other half is dark.
    另一半是黑的，

6. The camp itself consisted of little more than hammocks strung between trees, the fires to keep off the jaguars, and half a dozen cooking pots.
    他们的营地设备只有拴在树间的吊床，防范老虎的篝火和五六只炊锅。

7. The creature was on the ground, some distance ahead of him, half hidden by undergrowth and deep shade.
    那只动物在前面离他不远的地面上；矮树丛和纵深的树荫将它遮住了一半。

8. They put half a dozen Gestapo seals on my suitcases. I tried not to thank them too much.
    他们在我的箱子上盖了6个盖世太保的图章。我尽量使自己不对他们的感谢过了头。

9. The parents agree in writing to meet monthly in one of 20 regional groups, go to a yearly three-day regional retreat, and spend at least three times a year in workshops, discussion groups and seminars at Bath.
    家长签约同意每月出席一次区小组会议（共20个区小组），每年去区休养所三天，每年至少参加三次巴思市的研修班、讨论组和研讨会。

10. That's when workmen using huge machines began clawing out 1,000 tons of clay every half hour as they bored from England to France.
    1987年开工时，工人们用巨大的机械设备以每半小时挖掘1,000吨泥土的速度由英国向法国掘进。