| 字词 | 闰 |
| 释义 | ㄖㄨㄣヽ地球公转一周的时间为365天5时48分46秒。阳历把一年定为365天，所余的时间约每四年积累成一天，加在二月里。夏历把一年定为354天或355天，所余的时间约每三年积累成一个月，加在某一年里。这样的办法在历法上叫做闰 a leap year; it takes 365 days, 5 hours, 48 minutes and 46 seconds for the earth to make a revolution round the sun in its own orbit. A common year of the solar calendar consists of 365 days and the remaining time is compensated by adding a day to February every four years; hence every fourth year is a leap year. The lunar calendar takes 354 or 355 days for a year, the remaining time is compensated by adding a month to the third year, so it is also a leap year. |
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