| 1. | Asteroid lies between mars and jupiter .
小行星位于火星与木星之间。
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| 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。
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| 3. | 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。
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| 4. | 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。
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| 5. | 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。
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| 6. | This is the first asteroid sample return mission
这是首个收集小行星样本的任务。
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| 7. | Could an asteroid obliterate los angeles
有没有可能一个小行星把洛杉矶全灭？
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| 8. | Gargantuan asteroid to pass near earth this fall
大量小行星今秋将与地球错身而过。
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| 9. | You ' re not actually going into an asteroid field
你不是要进入小行星带吧
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| 10. | You can ' t make thejump to light speed in this asteroid field
在小行星带你不能加到光速
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