1. He opened the bag, full of small pieces of gold. He left half the gold on a rock.
    他打开小包，里面全是小金块。他丢了一半在岩石上。

2. He put the combined cell — then a newly growing embryo — into a grown female sheep.
    他把结合后的细胞——此时已是一个重新生长的细胞——植入一只成熟母羊的体内。

3. And by the time he is grown and able to take part in its activities, its habits are his habits, its beliefs his beliefs, its impossibilities his impossibilities.
    等他长大了，能做各种事了，他的社团的习惯就是他的习惯，他的社团的信仰就是他的信仰，他的社团不能做的事就是他不能做的事。

4. Did you serve this gentleman half an hour ago, Caroline?
    卡罗琳，半小时前你接待过这位先生吗？

5. During a single crucial three-week period during our teenage years, chemical activity in the brain is cut in half.
    我们的青少年阶段有一个为期三周的关键时期，此时脑部的化学反应活动一分为二。

6. As a rule David clocks out at half past four on Saturdays.
    每逢星期六戴维总是在四点半时在自动记时钟上签退。

7. At the same time our sympathy for Galileo´s opponents has grown somewhat.
    与此同时，我们对伽利略的反对派的同情也有所增加。

8. After making a short test flight at 4,15 a.m., Bleriot set off half an hour later.
    布莱里奥凌晨4点15分作了一次短距离试飞，半小时后便正式出发了。

9. As the Commanding Officer explained later, one half of the station did not know what the other half was doing!
    正如指挥官后来解释的那样，基地的这半边不知道那半边正在干什么！

10. At the same time the northern half is getting less direct sunshine, because it tips away from the sun.
    与此同时，北半球由于偏离太阳，太阳照射的光线较少，