| 1. | 1 . ancient chang an xi an 2
2 .黄河千里外河西走廊全长一千公里，围绕祁连山北麓。 |
| 2. | It ' s two hours by plane from here to that city
（从这儿）乘火车去那座城市约有二千公里。 |
| 3. | Ancient chang an xi an 2
河西走廊全长一千公里，围绕祁连山北麓。 |
| 4. | About 36 , 000 kilometres above the equator
赤道上空约三万六千公里 |
| 5. | This plane can reach speeds in excess of 1000 kilometers an hour
这架飞机可以达到每小时一千公里以上的速度。 |
| 6. | Electricity stopped flowing along thousands of kilometers of power lines
有几千公里的电力线发生了断电事故。 |
| 7. | He traveled many thousands of kilometers and visited fifty different tribes
他走过了数千公里拜访了50个不同的部落。 |
| 8. | The average distance traveled per vehicle per year is 19 , 000 kilometers
每一辆车每平均行驶距离达到了一万九千公里。 |
| 9. | Above the photosphere is another layer of gas , about 2 , 000km thick , called the
在光球层之上，是一层约为二千公里厚的 |
| 10. | He traveled many thousands of kilometers and visited fifty different tribes
他行程几千公里，访问了五十个不同的部落。 |
