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planetesimal的英文翻譯是什么意思，詞典釋義與在線翻譯：
英英釋義
Noun:
- one of many small solid celestial bodies thought to have existed at an early stage in the development of the solar system
超過介紹獨有作品，受著作權庇護，侵犯著作權必究
- 令日熱搜詞
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