Looking at you here, leap years.

看下日历，2020。

All right, so 2024 is a leap year.

2024。

So, leap years might seem silly.

因此，看起来很愚蠢。

And there is some interesting history associated with leap years.

有关还有一些有趣的历史。

In a leap year, the dates jump over one day of the week.

在，日期会跳过一周中的一天。

February has twenty-eight alone. All the rest have thirty-one. Except in leap year.

二月仅有二十八天。 除了在， 余下的月份均有三十一天。

We have a solar eclipse taken place in April, and it's a leap year.

四月有日食，今又。

So, that's how leap years work.

所以，这的机制啦。

Who came up with leap years and why do we have them?

谁提出了，为什么我们有呢？

Pope Gregory also made February 29th, the official date to add during a leap year.

格里高利还把2月29日确定为的官方日期。

It's called a leap year and it's maybe the strangest thing we do on the calendar.

这被称为，这我们在日历上所做的最奇怪的事情。

And the entire 12 month period with a February 29 in it is called a leap year.

12个月的时间里拥有2月29日的那一被称为。

We get 366 days on the calendar instead of 365. But why, what is a leap year?

日历上总共有366天，而不365天。但，这为什么呢，到底什么？

To mark the start of the 366-day countdown (2012 is a leap year), special events are planned for today.

今天，人们计划举办独具特色的庆祝活动来启动伦敦奥运会366天倒计时（2012）。

That means that in the 1600s, the 2000s, those have leap years, but not the 1700s, 1800s, and 1900s.

这意味着在1600，2000，这些，但在1700、1800和1900不。

It is called a leap year because hundreds of years ago in England, the extra day wasn't legally recognised.

在几百前的英国，多出来的这一天并未得到法律认。

Till leap year gives it one day more.

直到うるう再给它一天。

Last year was a leap year, skewing the comparison of this year's shorter first quarter with last year's longer one.

去，所以今的第一季度相对去来说要短一些。

You can choose from, why do we have leap years?

你以选择，为什么我们有？

When this happens, this is what we call a leap year.

当这种情况发生时，这我们所说的。