1. adapt,作动词,意为”适应,使适合,改写“等 He couldn’t adapt to new circumstances.他不能适应新环境。We must adapt our plan to these new circumstances.我们必须使我们的计划适应这些新情况。2. addition,作名词,意为”加,加法“等 In addition to English I can speak basic Japanese.除了英语,我还会说基本的日语。This stamp is an addition to my collection.这张邮票是我收藏的新邮票。3. additional,作形容词,意为”附加的,额外的“等 How much is the additional charge?额外费用是多少?They looked to the government for additional support.他们向政府寻求额外的支持。4. address,作名词或动词,意为”地址,住址,演说,写姓名地址,致函“等 I'll give you my address and phone number.我会告诉你我的地址和电话号码。The letter was returned because it had been addressed incorrectly.这封信被退回是因为地址写错了。5. adequate,作形容词,意为”足够的,合格的“等 The room was small but adequate.房间虽小但够用。He didn't give an adequate answer to the question.他没有对这个问题作出满意的答复。