英语词汇“cosmic year”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	cosmic year
释义	cosmic year noun : the estimated time required for a star at the sun's distance from the center of the Milky Way galaxy to make one trip around it in a circular orbit, about 200 million years
随便看	activator active active active amyl alcohol active bond active carbon active component active door active duty active immunity active intellect active list actively active mass activeness active reason active serum active service active site active transport active trust activewear activism activist activistic

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