1. Eventually the turtle has been butted all the way down to the floor of the tank.
    这只海龟最终被撞到池底。

2. Even if you travel in ideal weather, sea journeys take a long time.
    即使风平浪静，坐船旅行也要占用很长时间。

3. Engineers say a disaster is unlikely in the Chunnel because it wouldn't be flooded by a bomb. The tunnel is too far beneath the sea floor.
    工程师说隧道里不可能发生意外灾难，因为它不可能被炸弹炸开而涌进水，隧道在海底的深处。

4. By comparison, trips by sea offer a great variety of civilized comforts.
    相比较而言，海上旅行可提供各种文明的舒适条件。

5. Both men had hardly had time to realize what was happening when they were thrown violently into the sea.
    两个人都来不及弄清发生了什么事，就被猛烈地抛进了海里。

6. Both men had hardly had time to realize what was happening when they were thrown violently into the sea.
    他们两个还没来得及意识到究竟发生了什么事情，就被猛地抛入了海里。

7. It is quite reasonable to regard the sea floor as the basic form of the crust of the earth, with, superimposed upon, it the continents, together with the islands and other features of the oceans.
    因此完全有理由把海床看作地壳的基本模壳，上面附加着大陆以及岛屿和海洋的其他形态。

8. While we were having breakfast, our little boy, Tommy, found two small coins on the floor.
    正当我们吃早饭时，我们的小男孩汤米在地上找到两枚小硬币。

9. Will you travel by sea or by air?
    你们乘船去，还是乘飞机去？

10. We may travel by sea.
    我们可能乘船去。