| 1. | Asteroid lies between mars and jupiter .
小行星位于火星与木星之间。 |
| 2. | The orbits of such faint asteroids are not yet known .
但是对于这样暗的小行星的轨道，迄今尚未弄清。 |
| 3. | Eros is one of the planetoids which passes near the earth every now and then .
爱神星是一个时常靠近地球的小行星。 |
| 4. | Planets, asteroids, and satellites shine only by reflected sunlight .
行星、小行星和卫星都是靠反射太阳光而发光的。 |
| 5. | Most stars probably have their quota of planets, meteorids, comets, and asteroids .
多数恒星也许还拥有若干行星、流星、彗星和小行星。 |
| 6. | By comparison the navy was a queer little planet whirling in an austere void .
相比之下，海军像一颗在严峻的太空中旋转的怪诞的小行星。 |
| 7. | Until about 10 years ago we did not know the true sizes of asteroids very well .
一直到十年前为止，我们还不能确切知道小行星的真正大小。 |
| 8. | Asteroid has become commonplace to the readers of interstellar travel stories in science fiction magazines .
对于读过科幻杂志中星际旅行故事的读者来说，小行星已是平淡无味了。 |
| 9. | This is the first asteroid sample return mission
这是首个收集小行星样本的任务。 |
| 10. | Could an asteroid obliterate los angeles
有没有可能一个小行星把洛杉矶全灭？ |
