This increases their air-resistance and reduces the shock of impact when they hit the ground.

这样就加大了空气阻力，并减少了它们着地时冲击力带来的震动。

During the journey, their boat began to sink.

途中，船开始下沉，

She stands on dry land and is visited by thousands of people each year.

它停在陆地上，每年接待成千上万的参观者。

Nothing of value was found, but the numerous items which were brought to the surface proved to be of great interest.

但没发现什么值钱的东西，不过打捞出来的众多的物品还是引起了大家极大的兴趣。

Our next obstacle was a shallow pool of water about half a mile across.

下一个障碍是一片约半英里宽的浅水塘。

We offered them food and spoke to them kindly, but they remained motionless.

我们给他们东西吃，客客气气地同他们交谈，但他们却一动也不动。