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key
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音标：英 [kiː]
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解释：
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n. （打字机等的）键；关键；钥匙
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vt. 键入；锁上；调节…的音调；提供线索
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vi. 使用钥匙
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adj. 关键的
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n. (Key)人名；(英)基；(德、荷、瑞典)凯
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中文词源：
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key 钥匙，琴键，关键来自古英语caeg,钥匙，可能来自Proto-Germanic*ki,劈开，分开，来自PIE*ke,使锋利，磨，词源同cone,hone.后用于指钥匙，引申词义琴键，键盘，比喻义关键，核心。
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英文词源：
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key
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key: [OE] The Old English ancestor of key was cǣg. This produced a modern English word which to begin with was pronounced to rhyme with bay, and its present-day pronunciation, rhyming with bee, did not come to the fore until the 18th century. No one knows where the word originally came from; it has no living relatives in other Germanic languages.
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key (n.1)
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"metal piece that works a lock," from Old English cæg "key," of unknown origin, with no certain cognates other than Old Frisian kei. Perhaps related to Middle Low German keie "lance, spear" on notion of "tool to cleave with," from Proto-Germanic *ki- "to cleaver, split" (cognates: German Keil "wedge," Gothic us-kijans "come forth," said of seed sprouts, keinan "to germinate"). But Liberman writes, "The original meaning of *kaig-jo- was presumably '*pin with a twisted end.' Words with the root *kai- followed by a consonant meaning 'crooked, bent; twisted' are common only in the North Germanic languages." Modern pronunciation is a northern variant predominating from c. 1700; earlier it was often spelled and pronounced kay.
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Figurative sense of "that which serves to open or explain" was in Old English; meaning "that which holds together other parts" is from 1520s. As "answer to a test," it is from chess, short for key move, "first move in a solution to a set problem." Musical sense of "tone, note" is 15c., but modern sense of "scale" is 1580s, probably as a translation of Latin clavis or French clef (see clef; also see keynote). Extended c. 1500 to "mechanism on a musical instrument." As a verb meaning "to scratch (a car's paint job) with a key" it is recorded by 1986.
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key (n.2)
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"low island," 1690s, from Spanish cayo "shoal, reef," from Taino cayo "small island;" spelling influenced by Middle English key "wharf" (c. 1300), from Old French kai "sand bank" (see quay).
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双语例句：
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1. The key issue was whether the four defendants acted dishonestly.
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关键问题是4名被告是否存在欺诈行为。
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来自柯林斯例句
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2. For a beach resort with a difference, try Key West.
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如果想去一个与众不同的海滨度假胜地，那就去基韦斯特吧。
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来自柯林斯例句
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3. He unlocked her door and handed her back the key.
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他给她打开门锁，并把钥匙交还给她。
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来自柯林斯例句
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4. The key to his success is his logical mind.
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他成功的关键在于他擅长逻辑思维。
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来自柯林斯例句
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5. At these conventions, executives fraternized with the key personnel of other banks.
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在这些集会上，主管们和其他银行的重要人员友善往来。
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来自柯林斯例句
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更多相关例句：
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to insert/turn the key in the lock
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把钥匙插入锁孔；转动锁孔中的钥匙【牛津词典】
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the car keys
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汽车钥匙【牛津词典】
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a bunch of keys
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一串钥匙【牛津词典】
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the spare key to the front door
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前门备用钥匙【牛津词典】
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We'll have a duplicate key cut (= made) .
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我们会配一把钥匙。【牛津词典】
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The key to success is preparation.
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成功的关键是准备。【牛津词典】
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The driver of the car probably holds the key to solving the crime.
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这位汽车司机很可能掌握破获这一罪案的关键证据。【牛津词典】
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(especially North American English) The key is , how long can the federal government control the inflation rate?
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关键在于联邦政府对通货膨胀率的控制能维持多久？【牛津词典】
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Press the return key to enter the information.
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按回车键录入信息。【牛津词典】
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a sonata in the key of E flat major
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一首降E大调奏鸣曲【牛津词典】
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Check your answers in the key at the back of the book.
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用书后的解答核对答案。【牛津词典】
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Key (in) your password.
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用键盘输入密码。【牛津词典】
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The classes are keyed to the needs of advanced students.
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这些课是针对高年级学生的需要开设的。【牛津词典】
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the key issue/factor/point
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关键问题 / 因素；要点【牛津词典】
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He was a key figure in the campaign.
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他是这场运动的关键人物。【牛津词典】
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She played a key role in the dispute.
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她在争论中起着举足轻重的作用。【牛津词典】
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‘Caution ’ is the key word in this situation.
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在此情形之下，caution为关键词。【牛津词典】
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Good communication is key to our success.
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良好的沟通是我们成功的关键。【牛津词典】
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His contribution could be key.
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他的贡献可能是最重要的。【牛津词典】
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They put the key in the door and entered...
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他们用钥匙打开门进去了。【柯林斯高阶英语词典】
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She reached for her coat and car keys.
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她伸手拿外套和汽车钥匙。【柯林斯高阶英语词典】
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...the key of A minor.
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A小调【柯林斯高阶英语词典】
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You will find a key at the front of the book.
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你会在书的前面找到略语表。【柯林斯高阶英语词典】
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He is expected to be the key witness at the trial...
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他将成为审判的关键证人。【柯林斯高阶英语词典】
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Education is likely to be a key issue in the next election.
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在下届选举中教育可能成为最重要的一个议题。【柯林斯高阶英语词典】
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The key to success is to be ready from the start...
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成功的关键在于从一开始就要准备充分。【柯林斯高阶英语词典】
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Diet and relaxation are two important keys to good health.
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限制饮食和放松身心是保持健康的两个要诀。【柯林斯高阶英语词典】
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The key is to remember that there is not just one solution.【出自-2016年12月阅读原文】
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It has proved to be key to McDonald's business success.【出自-2016年12月阅读原文】
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Should a woman who possessed a small amount of drugs years ago be permanently unable to be licensed as a nurse?These laws are also counterproductive, since they make it harder for people with criminal records to find housing or land a job, two key factors that reduce backsliding.【出自-2015年12月阅读原文】
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He tied a metal key and a strip of silk to the kite line.【出自-2015年12月听力原文】
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Got a smart phone? Never lose your hotel key, or even have to stop at the registration desk again.【出自-2015年12月听力原文】
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Without social pressures to keep pair-bonds, romantic love plays a key role in maintaining long-term relationships.【出自-2013年6月阅读原文】
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plays a key role in maintaining long-term relationships【出自-2013年6月阅读原文】
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What is the key to landing a job according to the author?【出自-2012年12月阅读原文】
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The key to integrity is consistency- not only setting high personal standards for oneself (honesty, responsibility, respect for others, fairness) but also living up to those standards each and every day.【出自-2011年12月阅读原文】
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Get key information by reading just once or twice.【出自-2014年6月听力原文】
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Underline the key words and phrases【出自-2014年6月听力原文】
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The district manager is the key to the success of the sales representatives in his district.【出自-2010年6月听力原文】
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According to a new Pew Research Center survey on women and leadership, most Americans find women indistinguishable from men on key leadership traits such as intelligence and capacity for innovation, with many saying they're stronger than men in terms of b【2019年6月四级真题（第二套）阅读 Section C】
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Although economic research and previous survey findings have shown that career interruptions related to motherhood may make it harder for women to advance in their careers and compete for top executive jobs, relatively few adults in the recent survey poin【2019年6月四级真题（第二套）阅读 Section C】
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An individual's genetics has a big influence on their height but once you average over whole populations, genetics plays a less key role.【2019年6月四级真题（第二套）阅读 Section C】
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And good relationships are key to a successful career.【2019年12月四级真题（第二套）听力 Section B】
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Curiosity, he argues, is the third key factor—and a difficult one to preserve.【2017年12月四级真题（第二套）阅读 Section B】
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Irrespective of the quality of a school, a child's home life is of key importance.【2018年12月四级真题（第一套）听力 Section C】
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Its key objective is to place at the centre of recovery efforts measures that would generate high levels of employment and provide basic social protection for the most vulnerable.【2016年6月四级真题（第一套）听力 Section A】
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Mike Ellicock,chief executive of National Numeracy said we want to challenge this "I can't do maths" attitude that is prevalent in the UK, adding that it was vital that all primary school teachers understand key maths concepts as young children who fail t【2018年12月四级真题（第二套）听力 Section A】
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On the other hand, scientists are increasingly learning that aging and biological age are two different things, and that the former is a key risk factor for conditions such as heart disease, cancer and many more.【2017年12月四级真题（第二套）阅读 Section C】
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These laws are also counterproductive, since they make it harder for people with criminal records to find housing or land a job, two key factors that reduce backsliding.【2015年12月四级真题（第一套）阅读 Section C】
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Flexibility and control is key, she continued.【出自-2016年12月阅读原文】
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But this third group was not only unexpected, it was so distinct and so large—nearly one third of our sample—that it became a key finding of the study.【出自-2016年12月阅读原文】
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The key word in the Common Application prompts is "you.【出自-2013年12月阅读原文】
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Where women hold key posts in government【出自-2013年12月阅读原文】
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In the real world, problems rarely come neatly packaged, so being able to discern their deep structure is key.【出自-2013年12月阅读原文】
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What is the key issue in the Bowman vs【出自-2013年12月阅读原文】
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One key issue is how to produce more food in a world of finite resources.【出自-2013年12月阅读原文】
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As a global society, therefore, tackling food waste will help contribute towards addressing a number of key resource issues【出自-2013年12月阅读原文】
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A key process in interpersonal interaction is that of social comparison, in that we evaluate ourselves in terms of how we compare to others.【出自-2012年12月阅读原文】
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Artificial intelligence is key to future technological innovations【出自-2012年12月阅读原文】
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Our research universities have been the key to developing the competitive advantages that help Americans produce 25% of all the world's wealth.【出自-2012年6月阅读原文】
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Government action is key to solving economic problems【出自-2012年6月阅读原文】
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The key principle of copyright law has always been that works can be copied only once authors have expressly given their permission," says Piers Blofeld, of the Sheil Land literary agency in London.【出自-2011年12月阅读原文】
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We should take this concern seriously as universities are key in the national innovation system【出自-2011年12月阅读原文】
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If there was a greater coordination of technology transfer offices within regions and a simultaneous investment in the scale and functions of our graduate schools, universities could, and should, play a key role in positioning the UK for the next growth cycle.【出自】
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