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单词 tropical year
释义

tropical year

noun

: the period occupied by the sun's center in passing from one equinox to the same again and having a mean length of 365 days, 5 hours, 48 minutes, 45.5 seconds : solar year

Word History

First Known Use

circa 1574, in the meaning defined above

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更新时间:2025/2/1 1:00:25