year - definition of year by The Free Dictionary

year - definition of year by The Free Dictionary

瀏覽:731
日期:2024-04-27
year (yîr) n. 1. a. The period of time during which Earth completes a single revolution around the sun, consisting of 365 days, 5 hours, 49 minutes, and 12 seconds of mean solar time. In the Gregorian calendar the year begins on January 1 and ends on Dece...看更多