leap day是闰日的意思！ 今天就是2月29日！祝愿快乐！四年才有一次～～在公历（格里历）纪年中，有闰日的年份叫闰年，一般年份365天，闰年为366天。由于地球绕太阳运行周期为365天5小时48分46秒（合365.24219天）即一回归年，公历把一年定为365天。所余下的时间约为四年累计一天，加在二月里，所...
leap day- the name of the day that is added during a leap year bissextile day,February 29 day- a day assigned to a particular purpose or observance; "Mother's Day" Feb,February- the month following January and preceding March Based on WordNet 3.0, Farlex clipart collection. © 2003-...
,almost every four years an extra day appears on the calendar.Over time,our seasons would fall(5)o ut of order without the leap day.Each calendar year is about six hours(6)l onger than 365 days. However,a leap day is not added every four years.That would lengthen (延长) the ...
阅读理解As we all know leap years happen every four years, right?Wrong. That extra day in February is designed to keep the Earthin sync with the calendar. But, what you might not realize is thatthe maths isnt that simple and occasionally we have to wait eightyears.The method behind calcu...
actual length of a year is 365.242days,not 365days,as commonly stated.Basically,leap years come every 4years,and most years that can be evenly(平均地) divided by 4have 366days.This extra day is added to the calendar on February 29 th which is known as a leap day.Why leap is used ...
2026 is a leap year, and as we all know leap years happen every four years, right? Wrong. That extra day in February is designed to keep the earth in sync (同步的) with the seasonal year. But, what you might not realize is that the maths isn’t that simple and occasionally we hav...
actual length of a year is 365.242days,not 365days,as commonly stated.Basically,leap years come every 4years,and most years that can be evenly(平均地) divided by 4have 366days.This extra day is added to the calendar on February 29th which is known as a leap day.Why leap is used here...
Every other year a whole leap month was placed after February in order to align the calendar with the position of the sun. Rome’s ruler Julius Caesar then ended this procedure in 46 BC and introduced longer months and only a single extra day every four years. This was still a...
There are 366 days in 2024, and that extra day is coming up at the end of the month. This is a leap year, and leap day is Thursday, Feb. 29. If you’re wondering why we have leap days (nearly) every four years, the world’s leading leap day advocate lives right here in Orego...
根据“However, a leap day is not added every four years. That would lengthen the calendar by 44 minutes, say experts.”可知,闰日并不是每四年增加一次,每四年增加一次的话,会使日历延长44分钟,因此that指代的是“每四年增加一天”。故选A。5.主旨大意题。根据“Another main concern for leap day ...