| 1. | North america has vast deposits of shale . 北美有大量油页岩沉积。 |
| 2. | It is said to have been used by american indians . 据说曾为北美印第安人用语。 |
| 3. | He is a pure red indian . 他是血统纯正的北美印第安人。 |
| 4. | I was in charge of ford's north american operations . 我主管福特公司在北美的业务。 |
| 5. | The americans are the sons, not the bastards, of england ! 北美人民是英国的亲生儿,不是私生子。 |
| 6. | Great tongues of cold air at times sweep down over north america . 巨大的冷空气“舌”常常侵袭北美。 |
| 7. | The desert regions of north africa and australia are prime examples . 北美和澳大利亚的沙漠区便是典型的例子。 |
| 8. | The north american continent is made up of three great structural entities . 北美大陆是由三个构造单元组成的。 |
| 9. | No one ever really comprehends it, the vast table of america . 对这片辽阔的北美大平原谁也没有什么真正的了解。 |
| 10. | We repeated this experiment in a number of song sparrow territories . 我们在一些北美歌雀的领地重复了这种实验。 |