| 1. | How many millimeters are there in a kilometer ?
一公里有多少毫米？ |
| 2. | This reservoir extends a good five kilometres .
这个水库南北足有5公里。 |
| 3. | It's some thirty kilometres from here .
离这儿差不多有三十公里。 |
| 4. | One solar radius equals 696, 000 kilometers .
一个太阳半径等于696，000公里。 |
| 5. | The village is two kilometres from here at farthest .
那村庄离这里至多两公里。 |
| 6. | The car has a maximum speed of 120 kilometres an hour .
这车全速每小时120公里。 |
| 7. | He had walked several kilometers over pavements .
他在人行道上已经走了好几公里。 |
| 8. | One kilometre is equivalent to two li .
一公里为二华里。 |
| 9. | Usually they burn up about 100km above the earth .
它们常在地球上空约100公里处被烧毁。 |
| 10. | The velocity of light is about 300,000 kilometres per second .
光速约为每秒30万公里。 |
