价格、比率)下降;谢绝,婉言推辞;衰退,衰落。РLast year, the crime rate in Chicago has sharply declined. 去年芝加哥的犯罪率明显下降。РHe declined our invitation to dinner. 他婉拒了我们请他吃饭的邀请。Р19.?assemble, resembleР这两个词词形与发音相近,assemble意为“集中,集合,装配”。РPeople began to assemble on the platform. 人们开始向月台聚集。РIn that factory they can assemble a car in less than 15 minutes.Р在那家工厂,工人们不到15分种就能装配好一部汽车。Рresemble意为“相像”。РSmith resembles his father very much in all his ways. 史密斯各方面都像他的父亲。Р20.?assure, ensure, insure, reassureРassure和ensure都有“保证,确保”之意。Рassure指十分肯定地向某人保证某事一定要发生,使其放心,因此后面往往跟人做宾语。РI assure you of the reliability of the information. 我可以向你保证这消息是可靠的。Рensure强调能保证某种行为或某事件的结果一定发生。РEnsure that it is written into your contract. 你得保证把这一点写到合同中去。Рinsure特指“保险,替……做保险”。РIs your house insured against fire? 你的房子做了防火保险了吗?Рreassure意为“使人放心,使人安心,再向……保证”。