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单词 planetesimal
释义
Planetesimal
nnoun.objectone of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
Hypernyms:celestial body heavenly body
Inherited Hypernyms:planetesimalcelestial bodynatural objectwholeobjectphysical entityentity
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更新时间:2025/2/3 15:49:12