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accuracy  | 
        
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n. 准确性,正确性 quality of nearness to the truth or the true value He was beginning to doubt the accuracy of his compass.  | 
        
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acquaint  | 
        
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v. 熟悉 inform about; cause to come to know personally; make familiar Please acquaint the colleagues with your plans to move faster.  | 
        
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acquaintance  | 
        
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n. 熟人 personal knowledge or information about someone or something He also reconnected with Doris Schmitz, an acquaintance from the University of Frankfurt.  | 
        
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acquire  | 
        
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v. 获取 gain through experience or effort; gain possession of; locate with a tracking system They acquire a reputation for being difficult to work with.  | 
        
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acquisition  | 
        
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n. 获得 act of contracting or assuming or acquiring possession of something It has received an unsolicited, 15 dollar a share acquisition proposal from partners.  | 
        
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actively  | 
        
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ad. 活跃地,积极地 energetically; vigorously; voluntarily, not passively The beloved star - who worked actively from the 1960s up until an illness late last year - passed away Thursday morning.  | 
        
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actuate  | 
        
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v. 推动,促使 put into motion or action; activate I fail to understand what might actuate you to reply to this letter so nastily.  | 
        
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acumen  | 
        
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n. 思想敏锐 mental keenness; quickness of perception However, her team's political acumen is clearly beyond mine, an Ivy League Medical Science Professor and NOT a Political 'Science' Professor.  | 
        
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acute  | 
        
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a. 精明,敏锐,聪明 quickly perceptive; keen; having a sharp point or tip; extremely sharp or severe Her early writing was grounded in acute observation of the natural world.  | 
        
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adapt  | 
        
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v. 改变 make fit for; change to suit a new purpose One way to adapt is to become smaller, generation by generation.  | 
        
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adaptable  | 
        
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a. 能适应的,适应能力强的 flexible; becoming or being made suitable to a particular situation or use It made this sofa not only functional but also adaptable to any contemporary interior design.  | 
        
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adaptation  | 
        
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n. 改编,改写,适应环境 modification; alteration or adjustment in structure or habits The play is an adaptation of a short novel.  | 
        
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adaptive  | 
        
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a. 适合的,适应的 having a capacity for adaptation; capable of adapting In psychology, behavior or trait is adaptive when it helps individuals adjust within a changing social environment.  |