1. affair,作名词,意为“事件,事情”等 This has nothing to do with you. It’s not your affair.这与你无关。这不是你的事。The debate was a pretty disappointing affair.那次辩论使人颇感失望。2. affection,作名词,意为“喜爱,钟爱”等 Children need lots of love and affection.孩子需要多多疼爱和关怀。I have a great affection for New York.我很喜欢纽约。3. afford,作动词,意为“买得起,能做”等 We can't afford to go abroad this summer.今年夏天我们没有足够的钱去国外。My parents can't even afford a new refrigerator.我父母甚至买不起一台新冰箱。4. afraid,作形容词,意为“害怕,畏惧,担心”等 She was afraid to open the door.她不敢开门。She was afraid of upsetting her parents.她担心会使她父母不安。5. after,作介词、连词或副词,意为“在…后,追赶,仅次于”等 We'll leave after lunch.我们将在午饭后动身。He ran after her with the book.他拿着那本书在后面追赶她。