central
| 词义
| ［a.］ ① in the centre of an area or object 在中心的；中央的
［近 middle, median］
②having power or control over other parts起支配作用的，有控制力的［近dominant］
③ most important; main首要的；主要的
［+to］ ［近essential, primary, principal］
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例句
| ②. The worlds three top central bankers are all close to the top of the alphabet... 世界三大中央银行行长的姓氏都靠近字母表的顶部（2004 阅读Text 2）
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concentrate
| 词义
| ［v.］ ① ［T］ to bring sth together in one place使……集中、汇集 ［+ad./prep.］ ［近assemble］
②［I,T］ focus (ones attention, effort, etc) exclusively and intensely on sth, not thinking about anything else全神贯注, 专心致志（于某事物） ［+on sth/doing sth］ ［近focus］
③ ［T］ to make a liquid stronger by removing some of the water from it浓缩（液体） ［近condense］
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例句
| Grammar, punctuation, and spelling can wait until you revise. Concentrate on what you are saying. 语法、标点和拼写等问题留待修改时再考虑，把注意力放在你要说的内容上。 (2008阅读Part B)
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eccentric
| 词义
| ［a.］① (of people, behavior)considered by other people to be strange or unusual（指人、举止）异常的，古怪的 ［近bizarre, odd］
［n.］② ［C］ a person with an unusual or odd personality古怪的人
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concern
| 词义
| ［v.］ ［T］ ① to be about sth关于、涉及（某事） ［近deal with］
② (of an activity, situation, rule etc) to affect or involve sb (活动、情况、规则等)影响、牵涉（某人） ［近affect, bear on, relate to, refer to］
③ to make sb feel worried or upset使忧虑，使心烦［+sb, it concerns sb that...］ ［近worry，distress，trouble］
④ ［常用被动态］ to make oneself take an interest in sth or think it is important to do sth使自己关注（某事）或认为（做某事）重要［+oneself with/about sth，+oneself to do sth］ ［近interest］
［n.］⑤ ［C,U］ a feeling of worry, esp. one that is shared by many people（尤指许多人共同的）忧虑，担心 ［+about/for/over sth/sb, +that］ ［近worry, uneasiness, care］
⑥ ［U］ a feeling of wanting sb to be happy and healthy关怀，关爱 ［+for sb］ ［近regard，consideration，thoughtfulness，affection］
⑦ ［C］ sth that is important, or is your responsibility重要的事情，（由某人）负责的事 ［近interest, business］
⑧ ［C］ a business or company公司，企业［近business，enterprise］
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例句
| 2④. I provide a service that people can do without when theyre concerned about saving some dollars.我提供的服务在人们关注省钱时就不需要了。（2004阅读Text 3）
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discern
| 词义
| ［v.］［T］ ① ［不用进行式］ to see, notice, or understand sth only after looking at it or thinking about it carefully（仔细看过或想过之后才）看出；分辨出；觉察出；了解 ［+sth, +wh-, +that］ ［近make out, see, detect, spot, distinguish, perceive］
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discreet
| 词义
| ［a.］ ① careful or showing good judgment in what one says or does言行审慎的，慎重的 ［+about sth］ ［近cautious，diplomatic］ ［反indiscreet］
② small in size or degree; not too obvious （褒）不明显的，不显眼的，小的，淡的 ［近moderate, reasonable］
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ascertain
| 词义
| ［v.］［T,I］① to find out the true or correct information about sth弄清，查明［+sth, +wh-/that］ ［近determine, discover］
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certain
| 词义
| ［a.］ ① that you can rely on to happen or to be true确实，确定，有把握［+(of sth/doing sth),+(to do sth), +that］
② firmly believing sth; having no doubt确信，无疑［+(of/about sth), +that］ ［近sure］
③ used to talk about a particular person, thing, or group without giving any more details about it or them(不提及细节时)某人，某事，某种；(知其名但不识其人)某某，某位
④ slight; noticeable, but difficult to describe轻微的，显而易见却难以描述的
［pron.］⑤ （不提及人或物的名称时用）某些［+of］
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例句
| ③. Some software programs can also check spelling and certain grammatical elements in your writing.一些软件还可以检查出你文章中的拼写和某些语法错误。(2008阅读Part B)
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certify
| 词义
| ［v.］［T］ ① to state officially, esp. in writing, that sth is correct or true（尤指书面）证明，证实［+sb/sth. (as) sth.，+that］
②［常用被动］to give sb an official paper proving that they have completed a course of training for a profession授予证书［+sb.(as sth.)］
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例句
| If you were to examine the birth certificates of every soccer player in 2006's World Cup tournament, you would most likely find a noteworthy quirk.如果检查一下2006年世界杯足球锦标赛所有参赛运动员的出生证明，你很可能会发现一个值得注意的怪现象。（2007阅读Text 1）
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concerted
| 词义
| ［a.］① ［只用于名词前］done in a planned and determined way, esp. by many people working together 同心协力的，共同筹划决定的，努力的
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circuit
| 词义
| ［n.］ ［C］ ① a path that forms a circle around an area, or a journey along this path环形道路；环行［近round trip］
② the complete circle that an electric current travels电路，回路，线路 ［近electrics］
③ a series of games or events in which the same people regularly take part巡回；巡游；(体育活动中)巡回赛 ［近tour］
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例句
| ②. the invention of the integrated circuit during the 1960s六十年代集成电路的发明（2002 知识运用）
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circular
| 词义
| ［a.］ ① shaped like a circle; moving around in a circle圆形的，环形的；环行的，绕圈的 ［近round］
② (of an argument or way of thinking)that is not true because the statement can only be true when the original argument is already true（指推理）循环论证的（以要论证的论点作为论据来论证自身）
③ (of a letter) sent to a large number of people大量送发的；传阅的
［n.］ ［C］④ a printed advertisement, notice etc that is sent to lots of people at the same time (同时送达很多人的) 印刷品；通知，通告
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circulate
| 词义
| ［v.］［T,I］ ① to move around a place or within a system, or to make sth do this （使）循环，环流
② to pass from one place, person, etc to another; to send sth to people（使）流传, 传播；发送［近broadcast, spread］
③ to distribute or be distributed over a wide area（货币等）流通；（报刊等）发行
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例句
| This seems to have a considerable effect on the distribution of the earth's atmospheric pressure, and consequently on wind circulation. 这似乎对地球大气压力的分布有相当大的影响，从而影响风流。（1992阅读Text 2）
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circus
| 词义
| ［n.］ ① ［C］马戏团；［the circus］马戏表演
② ［用单数］ an event or a group of people etc that attracts a lot of attention引人注意的人(或事)；热闹的场面
③ ［用单数］ a round open area in a town where several streets meet(数条街道相汇聚的）圆形广场
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cycle
| 词义
| ［n.］ ［C］ ① the fact of a series of events being repeated in the same order; the period of time needed to finish a cycle循环；周期
② a bicycle or motorcycle自行车；摩托车
③ a complete set or process, for example of movements in a machine整套，整个过程 ［近set］
［v.］［I］ ④ to ride or travel by bicycle骑自行车(旅行) ［近bicycle］
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例句
| ①. Few Americans attribute this solely to such obvious causes as a devalued dollar or the turning of the business cycle. 很少有美国人将此仅仅归因于美元贬值或商业周期循环这些显而易见的原因。（2000阅读Text 1）
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encyclop(a)edia
| 词义
| ［n.］① ［C］ a book or set of books containing facts about many different subjects or about one particular subject百科全书；（某一学科的）专科全书，大全
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