原来1900不是闰年。

1900 wasn't a leap year.

youdao

每个闰年我们都要在二月底加上一天。

Each leap year we add that day onto the end of February.

youdao

那就是闰年名字得来的原因。

That's how leap year got its name.

youdao

为什么要有闰年？

Why do we have a leap year?

youdao

确定指定的年份是否为闰年。

Determines whether the specified year is a leap year.

youdao

你出生在哪年，是闰年吗？

Which year were you born? Is it the leap year?

youdao

每个闰年二月有二十九天。

And twenty-nine on each Leap Year.

youdao

时间定在闰年的夏至之后。

Time set in the years after the summer solstice.

youdao

隔多长时间有一次闰年？

How often is there a leap year?

youdao

闰年每四年来一次[每四年有一个闰年]。

The leap year comes around once in four years.

youdao

此定期约会开始于闰年。

This recurring appointment begins on a leap year.

youdao

2月29日是闰日；闰年是有添加日的年份。

Feb. 29 is an intercalary day; leap year is an intercalary year.

youdao

每四年闰年一次。

This year is a leap year.

youdao

每四年闰年一次。

Leap year recurs every four years.

youdao

为什么有闰年？

Why do we have leap years?

youdao

在每个闰年里，这些时间就被加总起来成为多出来的一天。

This time was added as an extra day during each leap year.

youdao

四年一闰，闰年于二月底增加一闰日以保证万物步入正轨。

Every four years a leap day helped keep things on track.

youdao

假设没有闰年，给出每个月第一天是星期几，问这个月的日历有几列…

Print single integer: the number of columns the table should have.

youdao

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。

The extra day in February because of the leap year also helped, specialists said.

youdao

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。

The extra day in February because of the leap year also helped, specialists said.

youdao