AD abbreviation
or chiefly US A.D.
or chiefly US A.D.
Learner's definition of AD
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used to refer to the years since the birth of Christ公元(耶稣基督诞生后的年份) -
550 A.D. = A.D. 550公元550年
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the first century A.D.A D.公元一世纪
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in the year 823 A.D.公元823年
◊ A.D. stands for the Latin phrase anno Domini, which means “in the year of the Lord.”*AD.源自拉丁语anno Domini,意为“主的诞生年”。
— compare b.c., b.c.e., c.e.