1. It was very difficult to build and rebuild such a great wall over wild and distant country without any modern machines .
    没有任何现代机器, 在那荒无人烟, 遥远偏僻的土地上修筑和重修这样一座长城是非常困难的.

2. It has cost them a great deal of money and time to develop this software.
    开发这种软件花费了他们很大的财力和物力。

3. We know something of the great variety of the sea-bed´s topography.
    我们对海底的各种各样的地形也有了了解.

4. If you lived in the Mediterranean, for instance, you would consider octopus a great delicacy.
    比如，如果你住在地中海地区，你会把章鱼视作是美味佳肴，

5. It marked the end of the great tradition of ships with sails and the beginning of a new era.
    它标志着帆船伟大传统的结束与一个新纪元的开始。

6. I reflected that there must be a great many people besides myself who wished to take advantage of this excellent service.
    我想除我之外，想利用快车之便的也一定大有人在。

7. In place of the great trees which had been growing there for centuries, patches of green had begun to appear in the blackened soil.
    一片片的绿草开始出现在这片烧焦的土地上，代替了多少世纪以来一直生长在那里的参天大树。

8. If the Houses of Parliament had not been burned down in 1834, the great clock would never have been erected.
    如果不是国会大厦在1834年被焚毁的话，这座大钟永远也不会建造。

9. I used to travel by air a great deal when I was a boy.
    我在幼年的时候，曾多次乘飞机旅行。

10. It is very hard to realize just how big the Great Pyramid is.
    要弄清大金字塔到底有多大，是很困难的。