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aorta
- 主动脉
- the main artery of the body
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apex
- 顶点,最高点
- the highest point; peak; vertex
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apiary
- 养蜂场,蜂房
- a place where bees are dept
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aplomb
- n 沉着,镇静
- compliete and confident composure
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apocrypha
- n 伪经,伪书
- writings or statements of dubious authenticity
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apocryphal
- a 假冒的,虚假的
- of doubtful authenticity
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apogee
- n 远地点
- the point in the orbit of an object(as a satellite) orbiting the earth that is at the greatest distance from the center of the earth
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apologize
- v 道歉;辩解
- to say one is sorry
- to make a formal defence
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apoplectic
- a 中风的;愤怒的
- of, relating to, orr causing stroke
- furious
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apostasy
- n 背教,脱党
- an abandoning of what one has believed in
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apostate
- n 背教者;变节者
- a person guilty off apostasy; renegade
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apothecary
- n 药剂师
- one who prepares and sells drugs
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appall
- v 使惊骇,使恐怖
- to fill with horror or dismay; shock
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apparatus
- n 仪器,设备
- set of instruments in scientific experiments
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apparel
- n(精致的)衣服
- clothing; garments; attire
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apparition
- n 幽灵,神奇的现象
- a trange figure appearing suddenly and thought to be a ghost
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appeal
- v 恳求;吸引;上诉
- to supplicate
- to be attractive or interesting
- to take a lower court;s decision to a higher court for review
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appease
- v 使平静,安抚
- to pacify or quiet
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appellation
- n 名称,称呼
- a name or title; designation
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appetite
- n 欲望,食欲,爱好
- physical desires, esp. food or pleasure
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appetizer
- n 开胃品
- thing eaten to stimulate the appetite
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appetizing
- a 美味可口,促进食欲的
- stimulating the appetite
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applaud
- v 鼓掌表示欢迎或赞赏
- to show approval clapping the hands
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applause
- n 鼓掌,喝彩
- approval publicly expressed clapping the hands
- acclaim
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applicable
- a 生效的,适合的
- capable of being applied; appropriate
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applicant
- n 申请人
- person who applies, esp. for a job
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application
- n请求,申请;应用, 应用程序
- an act of applying; request
- a program that performs one of the major tasks for which a computer is used
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appoint
- v 任命,指定;约会
- to name for an office or position
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apposite
- a 适当的,恰当的
- appropriate; pat; relevant
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appraise
- v 评价,鉴定
- to assess the value or quality
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appreciable
- a 明显的
- noticeable; perceptible
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appreciate
- v欣赏;感激
- to understand and enjoy
- to recognize with gratitude
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apprehend
- v 逮捕;恐惧
- to capture or arrest
- to anticipate with anxiety; dread
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apprehensive
- a 害怕的;有眼力的
- anxious or fearful that sth. bad or unpleasant will happen
- capable of apprehending or quick to do so
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apprise
- v 通知,告诉
- to inform, or notify
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approach
- v 靠近;着手处理 n 方法
- to come nearer
- to begin to handle
- method
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approbation
- n 称赞,认可
- commendation; official approval
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appropriate
- 拨款;盗用;a 恰当的
- to set money aside for a specific use
- to take improperly
- fitting
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approximate
- a 大约的,估计的
- much like; nearly correct or exact
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apron
- n 围裙
- a protective skirt worn over one's clothing
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apropos
- a/adv 适宜的(地);有关
- seasonable
- with reference to; regarding
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aptitude
- n 适宜;才能
- a natural tendency
- natural ability to do sth.
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aquatic
- a水生的,水中的
- growing or living in or upon water
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aqueduct
- n 引水渠;高架渠
- a conduit for water
- a structure for conveying a canal over a river or hollow
- a canal or passage
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aquifer
- n 含水土层
- an underground bed or layer of earth, gravel, or porous stone that yields water
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arable
- a 可耕的,适合种植的
- suitable for plowing and planting
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arbiter
- n 权威人士,泰斗
- arbitrator; a person fully qualified to judge or decide
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arbitrary
- a 专横的,不理智的
- discretionary; despotic; dictatorial
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arbitrate
- v 仲裁,公断
- to decide (a dispute) as an arbitrator
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arboretum
- n 植物园
- a place where trees, shrubs and herbaceous plants are cultivated for scentific and educational purposes
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arcane
- a 神秘的,秘密的
- mysterious; hidden or secret
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arch
- n 拱门,拱形
- a typically curved structural member spanning an opening and serving as a support
- to have the curved shape of such a structure
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archetype
- n 原型;典型例子
- the original pattern; prototype
- a perfect example
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archipelago
- n 群岛
- a group or chain of many islands
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archive
- n 档案室
- a place where public record or document are kept
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ardent
- a 热心的,热烈的
- intensely enthusiastic or devoded; passionate
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arena
- n(角斗的)竞技场
- intensely enthusiastic or devoded; passionate
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argot
- n 隐语,黑话
- slang; speech spoken by only a small group of people
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aria
- n 独唱曲,咏叹调
- a melody in an opera, cantata, or oratorio for solo voice with instrumental accompaniment
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arid
- a 干旱的;枯燥的
- dry
- dull; uninteresting
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aristocracy
- n 贵族;贵族政府
- the people of the highest sicial class esp. from noble families
- government in which power is held by the nobility
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armistice
- n 休战,停战
- a temporary stopping of warfare; a truce
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armory
- n 军械库
- place where arms and armor are kept
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aroma
- n 芳香,香气
- a pleasant, often spicy odor; fragance
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aromatic
- a 芬芳的,芳香的
- having a strong pleasant smell
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arouse
- v 唤醒;激发
- to wake up
- to cause to become active
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array
- v 部署;n 陈列
- to place armed forces in battle order
- impressive display
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arrest
- v 依法逮捕;阻止,抑制
- seize, capture
- to stop or check
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arresting
- a 显著的,引人注意的
- catching the attention
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arrhythmic
- a 无节奏的;不规则的
- lacking rhythm or regularity
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arrogance
- n 傲慢,自大
- unpleasant pride and a lack of respect for others
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arrogant
- a 傲慢的,自大的
- overbearing; haughty; proud
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arrogate
- v 冒称具有...权利
- to claim or seize without right
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arroyo
- n 干涸的河床;小河
- a dry gully
- a creek
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arsenal
- n 军械库
- place where weapons and ammunition are stored
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arson
- n 纵火,放火
- the crime of purposely setting fire
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artery
- n 动脉,命脉
- a vessal that carries blood from the heart to the rest of the body
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arthritis
- n 关节炎
- an inflammation of the joints
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articulate
- v 清楚说话
- to express clearly
- to puttogether by joints
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artifact
- n 人工制品
- object made by human beings
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artifice
- n 巧办法;诡计
- skill or ingenuity
- a sly trick
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artless
- a 粗俗的;自然的
- uncultured; ignorant
- without arificiality
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ascendancy
- n 统治权,支配力量
- supremacy; domination
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ascetic
- a 禁欲的;n 苦行者
- self-denying
- anyone who lives with strict self-discipline
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ascribe
- v 归功于;归咎于
- to consider sth. to be caused by
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aseptic
- a 洁净的;无菌的
- not contaminated
- not septic
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aspect
- n 方面;面貌,外表
- a particular status or phase in which sth. appears or may be regarded
- appearence
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asperity
- n 严酷;粗鲁
- rigor, severity
- harshness
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aspersion
- n 诽谤,中伤
- disparaging remark; slander
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asphyxiate
- v(使)无法呼吸,窒息而 死
- to suffocate
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aspirant
- n 有抱负者
- a person who aspires after honors, high position
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aspiration
- n 抱负,热望
- strong desire or ambition
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aspire
- v 向往,有志于
- to direct one's hopes and efforts to some important aim
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assail
- v 抨击;猛攻
- to attack with arguments
- to assault
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assault
- n 突然袭击;猛袭
- a suden attack
- aviolent attack
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assay
- v/n 试验,测定
- testing for quality
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assemble
- v 集合,聚集
- to collect
- to fit together the parts
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assent
- v 同意,赞成
- to express acceptance; concure; consent
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assert
- v 断言,主张
- to state positively; declare; affirm
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assertive
- a 过分自信;有进取心的
- expressing or tending to epress strong opinions or claims
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assertiveness
- n 过分自信
- state characterized by bold or confident assertion
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assess
- v 确定评定;估计...的质量
- to evaluate
- to estimate the quality
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assessment
- n 估计,评价
- the action or an instance of assessing
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asset
- n 财产;可取之处
- anything owned
- a desirable thing
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assiduous
- 勤勉的;专心的
- diligent; persevering
- attentive
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assimilate
- v 同化;吸收
- to absorb and incorporate
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associate
- a 联合的;n 合伙人
- joined
- partner; colleague
- to join people or things together
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assuage
- v 缓和,减轻
- to lessen; relieve
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assume
- v 假定
- to accept sth. as true before there is proof
- to take on duties or responsibilities
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assumption
- n 设想;夺取
- an assuming that sth is true
- the act of taking possession of sth.
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assure
- v 向某人保证,确信
- to tell sb. positively
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assured
- a 自信的;确定的
- confident
- characterized by certainty or security
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asterisk
- n 星号
- a mark like a star used to draw attention
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asthma
- n 哮喘症
- an illness involving difficulty in breathing
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astound
- v 使震惊
- to overcome sb. with surprise
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astray
- a 迷路的,误入歧途的
- off the right path or way
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astringent
- a 止血的,收缩的;n 收 缩剂,止血剂
- styptic, puckery
- an astingent substance
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astrology
- n 占星术;占星学
- primitive astronomy
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astronomical
- a 庞大的
- enormously or inconceivably large or great
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astute
- a 机敏的,精明的
- showing clever or shrewd mind; cunning; crafty
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asunder
- a/adv 分离的;化为碎片
- apart or separate
- into pieces
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asymmetric
- a 不对称的
- having sides that are not alike
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athletics
- n 运动,体育
- exercises, sports, or games engated in by athletes
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atonal
- a(音乐)无调的
- marked by avoidance of traditional musical tonality
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atrocious
- a 残忍的,凶恶的
- very cruel; brutal; outrageous
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atrocity
- n 残暴,暴行
- brutality; cruelty
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atrophy
- n 萎缩,衰退
- decrease in size or wasting away of a body part of tissue
-
attach
- v 将某物系在(另一物)上
- to fasten sth. to sth.
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