In a leap year, the dates jump over one day of the week.
在闰年的时候，日期会跳过一周中的某一天。
The year with a February 29th in it is called a leap year.
有2月29日的那一年被称为闰年。
The reason for a leap day or a leap year is because our calendar does not follow the Earth's orbit around the sun exactly.
闰日或闰年出现的原因是我们的历法并不精确地遵循地球围绕太阳运行的轨道。
Handling leap year is fairly straightforward—add an extra day, if using the Gregorian calendar, to the year-month or day interval calculations.
处理闰年相当简单——如果使用公历，在以年月日为时间间隔的计算中添加额外的一天。
In a 1-out-of-365 chance, or less considering leap year, Palmisano and Rometty share the same birthday, July 29th; is that an omen of some kind?
帕米萨诺和罗梅蒂在7月29日同一天生日，这可是365分之1的小概率，考虑到闰年，可能更小；这是某种预兆吗？
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.
还有一些其他技巧可以帮助你确定一年的头几个月的日期——例如，二月的最后一天总是锚日，不管闰年还是平年。
为什么要有闰年？
How often is there a leap year?
隔多长时间有一次闰年？
原来1900不是闰年。
That's how leap year got its name.
那就是闰年名字得来的原因。
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？
Determines whether the specified year is a leap year.
确定指定的年份是否为闰年。
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。
Feb. 29 is an intercalary day; leap year is an intercalary year.
2月29日是闰日；闰年是有添加日的年份。
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。
Then, he borrowed the idea of a seven-day week and leap year from the Hebrew calendar.
接着，他借用了希伯来历法中一周七天和闰年的概念。
There are 366 possible birthdays (including February 29 in a leap year) and this blog has many more than 367 readers.
包括润年的2月29日在内，全年366天中的某一天都可以成为某人的生日。
For example, the year 2000 was a leap year, but the year 1900 was not, because when divided by 400, it does not render a whole number.
比如，2000年是闰年，但是1900年不是。因为1900不能被400整除。
In Scotland, being born on February 29th is considered unlucky. In Greece, getting married during a leap year is also thought to be bad luck.
在苏格兰，在二月二十九日出生被视作不吉利。在希腊，闰年结婚也被视作不吉利。
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。
Our leap year system-which adds an extra day to the calendar every four years-ensures our calendars are accurate, but it also causes the solstice date to flop around a bit.
我们的闰年计算方法，即每四年就在日历上额外增加一天，以保证我们历法的准确性，但这也导致至日日期有点变化。
And twenty-nine on each Leap Year.
每个闰年二月有二十九天。
Leap year recurs every four years.
每四年闰年一次。
Leap year recurs every four years, and in that year February has 29 days.
每四年闰年一次，而那一年中，二月有二十九天。
Leap year recurs every four years, and in that year February has 29 days.
每四年闰年一次，而那一年中，二月有二十九天。
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