1. Despite their short time on Earth, however, people have brought about enormous changes to the surface of the planet — changes far out of proportion to the interval of time they have occupied it.
    然而，尽管在地球上的时日尚短，人类却已给地球表面带来了巨大的变化——这些变化与人类占据地球的短暂时间相比，是远远不成比例的。

2. During this time, Sarah kept running across the hall to seek comfort from Katie.
    这段时间里，萨拉不断跑到过道对面卡蒂那儿寻求慰藉。

3. A long time ago the tiny country of Switzerland was ruled by Austria.
    很久以前,瑞士这个小国被奥地利统治.

4. Are you aware of the time?
    你知道是什麽时候了吗?

5. Another time he was seen using a check for $ 1500 as a bookmark . Then he lost the book!
    另一次, 有人看见他把一张一千五百美元的支票当作书签用.后来那本书丢了!

6. At one time Nigeria was a British colony.
    过去，尼日利亚是英国的殖民地。

7. As usual, the police will have a difficult time. They will be trying to keep order.
    如往常一样，警察的日子将不太好过。他们要设法维持秩序。

8. A long time ago the tiny country of Switzerland was ruled by Austria.
    很久以前,瑞士这个小国被奥地利统治.

9. After years of pre -conditioning, most of us have developed an unshakable faith in railway time- tables.
    经过多年的应验之后，我们多数人对铁路时刻表都产生了不可动摇的信任。

10. At that time, however, she was not only the largest ship that had ever been built, but was regarded as unsinkable.
    然而在当时,它不仅是有史以来建造得最大的一艘轮船,而且被视为一艘不会沉没的船只.