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As for that ancient moon's rocky core?
至于那颗古老卫星的岩石内核呢？
youdao
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The nucleus might have a small rocky core.
彗核内可能有一个小的石质核心。
youdao
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Neptune probably has a rocky core, but composition is unknown.
海王星，可能有一个多岩石的核心，但成分不明。
youdao
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Neptune probably has a rocky core, but composition is unknown.
海王星，可能有一个多岩石的核心，但成分不明。
youdao