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dagger  | 
        
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n. 短剑,匕首 knife; a short pointed weapon with sharp edges He dug his finest dagger from the drawer of his desk and tucked it inside his boot.  | 
        
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dairy  | 
        
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n. 牛奶场,奶制品厂,奶品店 a place where milk is produced, kept or converted into butter or cheese Milk, butter, and cheese are brought in here from dairy farms.  | 
        
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dam  | 
        
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n. 水坝,筑坝 a barrier to prevent the flow of liquid, specially built across a watercourse The dam was not strong enough to hold back the floodwaters.  | 
        
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damp  | 
        
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a. 潮湿的,有湿气的 humid; moist; slightly wet The report says some masters house their workers in bad conditions - cramped, damp dormitory blocks with poor sanitation.  | 
        
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dampen  | 
        
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v. 使潮湿 moisten; lessen in force or effect Now it seems that ministers may be accepting that we're moving into a world of permanently higher oil prices that will dampen economic growth.  | 
        
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dangerous  | 
        
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a. 危险的 full of risk; perilous; hazardous; unsafe He was in the midst of some dangerous gymnastic performances.  | 
        
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daring  | 
        
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a. 大胆的,勇敢的 bold; brave and taking risks This was one of the most daring prison breakouts to take place in Greece.  | 
        
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dart  | 
        
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v. 飞奔,投掷 move suddenly and rapidly Your eyes take them in, then dart away to something else.  | 
        
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dash  | 
        
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v. 突进,飞跑,冲撞,急匆匆地写 throw with violence or haste; break, as by throwing or by collision; form or sketch rapidly In my fury, I dash all the dishes to the floor.  | 
        
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database  | 
        
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n. 数据库 collection of data arranged for ease and speed of search and retrieval The heart of the database is the national list of voters produced each year by Elections Canada.  | 
        
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date  | 
        
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v. 注明日期,约会 mark the time of; assign a date to Scientists often cannot date precisely archeological findings.  | 
        
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dated  | 
        
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a. 陈旧的,过时的 old-fashioned; obsolete For an average insurance requirement and an average dated car, the breakeven point declines to 15 000 km a year.  | 
        
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daunt  | 
        
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v. 惊吓,胁迫 frighten; abate the courage of; discourage Other northern employers were shocked that ex-slaves refused to work in conditions that would not daunt a farmer in the North.  | 
        
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dazzle  | 
        
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v. 使目眩,使眼花,使迷惑 overpower with light; confuse the sight of by brilliance of light; bewilder or surprise with brilliancy His eyes dazzle before the strong light.  | 
        
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dazzling  | 
        
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a. 眼花缭乱的,耀眼的 bright or brilliant; extremely attractive or exciting At last, they conspired together and hit upon a plan that promised a dazzling victory.  | 
        
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deal  | 
        
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n. 交易,份量 part or portion; share;  indefinite quantity, degree, or extent, degree, or extent;  distribution; arrangement This question the Dodo could not answer without a great deal of thought.  | 
        
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debatable  | 
        
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a. 未决定的,有争执的 disputable; unsettled; open to doubt or debate In 2005 Steven Spielberg released the highly debatable film Munich, which told a fictional story based on these true events.  |