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namely  | 
        
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ad. 即,就是,换句话说 by name; by particular mention; expressly; that is to say Lydia briefly stated the business in hand, namely to choose a secretary and treasurer for the committee.  | 
        
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narcotic  | 
        
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n. 麻醉的,催眠的 the addictive drug, such as opium that reduces pain, alters mood and behavior; inducing sleep Some patients seek alternative solutions to long-term narcotic painkillers.  | 
        
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narrator  | 
        
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n. 讲述者 someone who tells a story Rochester has been favored with the most lively and the most continuous? The eagerness of a listener quickens the tongue of a narrator.  | 
        
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nausea  | 
        
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n. 作呕,恶心 the feeling of sickness in the stomach by an urge to vomit; strong aversion; disgust Side effects include dizziness, nausea, and falling asleep.  | 
        
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needy  | 
        
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a. 贫穷的,生活艰辛的 poor; indigent; being in need; impoverished Economists and poverty researchers say multiple factors may account for the increase in needy college graduates.  | 
        
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neglect  | 
        
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v. 疏忽,忘记 disregard; ignore; pay little or no attention to Iraqi sovereignty does not neglect the U.S. promise to protect the residents of Camp Ashraf.  | 
        
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negligent  | 
        
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a. 疏忽的,粗心大意的 failing to be careful enough or to give enough attention to your responsibilities; inattentive Did she like that negligent housekeeper?  | 
        
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nervous  | 
        
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a. 神经的,神经紧张的,易激动的 agitated; worried and anxious It was talking in a hurried nervous manner, smiling at everything that was said, and went by without noticing her.  | 
        
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neurotic  | 
        
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a. 神经病患者 of or about the nerves; seated in the nerves; nervous If they get through that period without becoming neurotic or worse, they're usually all right from then on.  | 
        
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neutral  | 
        
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a. 中型的,自然的,中庸的,公允的 impartial; not supporting one side over another Edwards will remain neutral until after 'Super Tuesday,' then he will endorse Hillary.  | 
        
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neutralize  | 
        
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v. 抵消,中和 make neutral and thus inoffensive The treaty might neutralize the small republic.  | 
        
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neutron  | 
        
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n. 中子 an elementary particle with 0 charges and mass about equal to a proton They are discussing the specific case of a neutron found outside the nucleus.  | 
        
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