leap year
leap year 英 [li:p jə:] 美 [lip jɪr]
phrase. 闰年
名词复数:leap years
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- phrase. 闰年
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1. The system resets every leap year, slipping a little bit backward until a non-leap century year nudges the equinoxes forward in time once again.
这一立法体系每遇闰年会重置一次，将时间稍微错后一些，直到一个非闰世纪年再一次推动春秋分日准时降临。
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2. There are other tricks to assist with dates in the first months of the year—for example, the last day of February is always an anchor day, leap year or no.
还有一些其他技巧去帮助记住一年头几个月的日子，比如，二月的最后一天总是锚日，不管平年还是闰年。
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3. But where does the idea of a leap year come from, and why exactly do we have one?
然而，闰年的概念源自哪里，而我们又究竟为何有这闰年一说呢？
- leap year (n.) "year containing 366 days," late 14c., lepe gere (not in Old English), from leap (v.) + year. Probably so called from its causing fixed festival days, which normally advance one weekday per year, to "leap" ahead one day in the week. Compare Medieval Latin saltus lunae (Old English monan hlyp) "omission of one day in the lunar calendar every 19 years."
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