annex vt.附加 （add, append）
（例）The powerful nation annexed the small islands near its coast.
annihilate vt.消灭，取消（destroy,vanish）
（记）an+nihil（无）+ate→使无→消除
（例）The leaders of the country tried to annihilate poverty.
annotate vt.注解（note）
（记）an（给予）+not（注意）+ate→给予注意→注解
（例）The publisher annotated the new edition of Shakespeare's plays.
announce vt.宣布，通告（declare,proclaim）
（记）an+nounce（讲）→一再讲→宣布
（例）John and Mary announced their engagement last night.
annoy vt.使恼怒；打扰（irritate,vex）
（例）John's little brother annoyed him by changing the TV channel.
annually* adv.每年地（yearly）
（记）annu（年）+ally
annul v.废除，取消（abolish,repeal）
（记）an+nul（无）→使无→废除
（例）Tom's marriage was annulled aftef six months.
anomalous adj.反常的（irregular,abnormal）
（记）a（不）+nomal（正常）+ous
（例）An anomalous yellow rose stuck out in the bouquet of red roses.
anomaly n.异例，异常，变态（exception）
（例）The test results contained anomalies that the scientists could not explain.
anonymous adj.匿名的（unknown,unnamed）
（记）an（无）+onym（名）+ous
（例）An anonymous donor gave a million dollars to the charity.
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