| 释义 |
AD (BrE ) (NAmE alsoA.D. ) BrE /ˌeɪ ˈdiː/ NAmE /ˌeɪ ˈdiː/ abbreviation used in the Christian calendarto show a particular number of years since the year when Christ was believed to have been born (from Latin 'Anno Domini ')公元（源自拉丁语 Anno Domini）◆ in (the year ) AD 55 公元 55 年◆ in 55 AD 公元 55 年◆ in the fifth century AD 公元 5 世纪 ➡ compare AH, BC, BCE, CE |