The leap year comes around once in four years.
闰年每四年来一次[每四年有一个闰年]。
Which year were you born? Is it the leap year?
你出生在哪年，是闰年吗？
The extra day in February because of the leap year also helped, specialists said.
专家表示，因今年是闰年，2月比往年多了1天，这也是有利因素之一。
This year, the world’s timekeepers will add its 24th leap second since 1972.
今年，全世界的计时员将自1972年以来第二十四次增加闰秒。
Each leap year we add that day onto the end of February.
每个闰年我们都要在二月底加上一天。
The next leap second comes at the end of this year.
下一次的闰秒将出现在今年末。
This year, the world's timekeepers will add its 24th leap second since 1972.
今年，全世界的计时员将自1972年以来第二十四次增加闰秒。
Calculates the leap month for a specified year.
计算指定纪元年份的闰月。
Calculates the leap month for a specified year and era.
计算指定年份和纪元的闰月。
Calculates the leap month for a specified year, or year and era.
计算指定年份或指定纪元年份的闰月。
Determines whether the specified year is a leap year.
确定指定的年份是否为闰年。
Determines whether the specified year is a leap year.
确定指定的年份是否为闰年。
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