中文翻译与英英解释 | any of numerous small celestial bodies that move around the sun
同义词：minor planet,
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例句与用法 | 1. | 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。
| | 2. | There is a maximum size that mountains can attain that gets smaller as the planetoid gets more massive
（山体能达到的高度是有限度的，而且小行星引力越大，山体能达到的高度就越低。 ）
| | 3. | Solar system ' s main member includes : sun ( star ) , nine planets ( including earth ) , innumerable planetoids , multitudinous satellite ( including moon ) , but also has the comet , the meteor as well as the massive dust matter and the thin gaseous state matter
太阳系的主要成员有：太阳（恒星） 、九大行星（包括地球） 、无数小行星、众多卫星（包括月亮） ，还有彗星、流星以及大量尘埃物质和稀薄的气态物质。
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