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单词
protogalaxy
释义
protogalaxy
noun
pro·to·gal·axy
ˌprō-tō-ˈga-lək-sē
:
a cloud of gas believed to be the precursor to a galaxy
Word History
First Known Use
1950, in the meaning defined above
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更新时间:2025/3/18 2:16:55