Determines whether the specified day is a leap day.
确定指定的日期是否为闰日。
Every four years a leap day helped keep things on track.
四年一闰,闰年于二月底增加一闰日以保证万物步入正轨。
词典释义:
n. 闰日;闰年日;2月29日;润日
Determines whether the specified day is a leap day.
确定指定的日期是否为闰日。
Every four years a leap day helped keep things on track.
四年一闰,闰年于二月底增加一闰日以保证万物步入正轨。
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