| 1. | Freight was now going aboard flight two in a steady stream .
货物已开始源源不断地送上第二号班机。 |
| 2. | In other words, replacement of the number 8 carbon by nitrogen in the purine ring does not eliminate activity .
换句话说，嘌呤环上第8位碳被氮所取代并不丧失活性。 |
| 3. | The worker spends his whole life time accomplishing nothing more than the turning of bolt 999 on the remorseless assembly line .
那个工人一辈子只干一种活，即旋紧冷酷无情的装配线上第999号螺丝钉。 |
| 4. | Canada is the second largest country in the world
加拿大是世界上第二大的国家。 |
| 5. | Iran is the world ' s fourth - largest oil exporter
是世界上第四大石油输出国。 |
| 6. | Skipping ciass ? he aiways skips sixth period , but
旷课？同从来都不上第六节课但是 |
| 7. | Baffin island is the fifth largest island in the world
巴芬岛是世界上第五大的岛屿。 |
| 8. | Canada is the second largest country in the world
加拿大是世界上第二个（面积）大国。 |
| 9. | And when the 12th largest company in the world . .
当世界上第12大的公司. . |
| 10. | The second work in the program is the piano concerto
节目单上第二个作品是钢琴协奏曲。 |
