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botanical/bəˈtənikəl/adj.植物学的：botanical specimens植物标本；a botanical illustrator植物插图说明botany/ˈbɔtəni/n.［u］植物（学）：the botany of North America北美的植物He ···

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both/bəuθ/ I.adj.两者(人，物)都(用于定冠词、指示代词、所有格名词/代词及其它形容词前面)：I want both books/ both the books/ both these books.这两本书我都想要。Both his younger bro···

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bother/ˈbɔðə/ I.vt.&vi.1.打扰；麻烦；难受: Excuse me for bothering you.对不起，打扰您了。［考句］I’m very sorry to have bothered you with so many questions on such an occa···

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bottle/ˈbɔtl/I.n.［c］瓶：a bottle of wine (milk, beer)一瓶酒(奶，啤酒) Mary drinks two bottles of milk a day.玛丽一天喝两瓶牛奶。He managed to get througha bottle ofwine.他竟然喝···

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bottom/ˈbɔtəm/n.［c］1.底，底部：from top to bottom从上到下，全部地from the bottom of one’s heart从心底，由衷地：I thank you from the bottom of my heart for all your help.我从心···

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bounce/bauns/ I.vt.&vi.1. (使)弹起：bounce the child on one’s knees让小孩在膝盖上蹦腾［考句］The ball bounced two or three times before rolling down the slope.球在滚下坡前弹了···

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bound/baund/ I.adj.1.必定，一定的；决心(跟不定式)：He is bound to go.他决心去。［考句］Children are bound to have some accidents as they grow up.孩子成长时，准会出点事故。2.受约束的···

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boundary/ˈbaundəri/n.［c］(边)界线；边界；分界线：The Yalu forms the boundary between China and Korea.鸭绿江划分中朝间的边界。the Sino-Burmese Boundary Treaty中缅边界条约；a boun···

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bounty/ˈbaunti/n.1. [c](由政府提供的)奖金,赏金：The government has placed a bounty on the heads of many of its opponents.政府悬赏要许多反对者的脑袋。2. [u]慷慨，宽大：The charity ···

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bouquet/ˈbu(:)kei或buˈkei/n.［c］1.花束：Her wedding bouquet consisted of roses and ivy.她的婚礼花篮包括玫瑰和长春藤。He sent her a large bouquet of wild flowers.他送她一大束野花···