คำว่า
AD
AD ความหมายคือ AD abbr. 1. active duty 2. adenoid-degenerating 〔医〕增殖腺退变 3. after date 发票后定期付款 4. air-dried 5. 〈拉〉anno Domini (＝ in the year of the Lord 或 since Christ was born) 6. assembly district (美国某些州的)选区 7. autograph document 〔律〕亲笔签署的文件
