单词	galactic coordinate
释义	galactic coordinate noun : a member of a system of celestial coordinates based on the equatorial plane of the Milky Way galaxy Word History First Known Use 1872, in the meaning defined above
随便看	sum (to or into) sum and substance sum fre sum to or into sum total sum totals sum-up sum-ups Suma sumac sumac family sumac wax sumach sumachs sumacs Suman sumas Sumatra Sumatra camphor Sumatra leaf Sumatra seed Sumatra wax sumatrae sumatran sumatrans

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