n.广告,网球中的优势分advantage. ad in
The Roman Empire was divided in the fourth century AD.
罗马帝国于公元4世纪分裂。
The cathedral was destroyed by the Great Fire of 1136 AD.
大教堂在公元1136年的大火中被付之一炬。
He's probably narked because he didn't see the ad himself.
他可能会有些恼火,因为没有亲眼看到广告。