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BOOK1UNIT5Languagesaroundworldbillion/'biljan/u.十亿native/neitiv/adj.出生地的；本地的；土著的n.本地人benativeto原产于nativecountiy/language/land祖国/母语做土anativeof……本地人；原产于……的动植物attitude/jetitju:d/n.态度；看法one'sattitudetowards/to...某人对的态度have/take/liolda/an...attitude采取的态度reference/refrons/n.指称关系；参考havereferenceto和有关系forfiirtherreference供曰后参考in/withreferenceto关于；就而论refer/nf3：（r）/vi.提到；参考;查阅vt.查询;叫…求助于（referred,referred,referring）referencen.提到；参考；查阅referencebooks参考书referto指的是；描述；提到；查阅referto提及；参考，查阅；涉及?toadictionaryThemanrefeiredtoisafamouswriter.referto...as将称为refersb/sthtosb把某人介绍给某人（帮忙）/把某物交给某人（解决）refer...to...把提交/委托给；把归功于system/sistdm/n.体系；制度；系统despite/dispait/prep.即使；尽管regardlessof/inspirtof尽管;即使;不顾后接名词、代词、动名词或whnt引导的名词性从句。放在句首时，后面不接句子。upsanddowns浮沉；兴衰；荣辱factor/fekto（r）/n.因素；要素based/beist/adj.以（某事）为基