六级What Nijay didn't realize about his school—Tennessee State University — was its frighteningly low graduation rate: a mere 29 percent for its first-generation students.

尼杰没有意识到他的学校田纳西州立大学的毕业率低得吓人：第一代学生的毕业率只有29%。

2015年12月阅读原文

考研A Harvard Business School study found that observers consistently rated those who were frank about themselves more highly, while those who hid lost trustworthiness.

哈佛商学院（Harvard Business School）的一项研究发现，观察者一贯认为那些对自己坦诚的人的评价更高，而那些隐瞒真相的人则失去了可信度。

2020年考研真题（英语二）阅读理解 Section Ⅱ

考研A report last year pointed out that the costs both of subscriptions and of these "article preparation costs" had been steadily rising at a rate above inflation.

去年的一份报告指出，订阅费和这些“文章准备费”的成本一直在以高于通胀的速度稳步上升。

2020年考研真题（英语一）阅读理解 Section Ⅱ

四级That's the conclusion of a new study that finds that Earth's oceans now 26 absorb heat at twice the rate they did 18 years ago.

这是一项新研究的结论，该研究发现地球海洋现在吸收热量的速度是18年前的两倍。

2016年12月四级真题（第二套）阅读 Section A

六级They can multiply at an accelerating rate.

它们可以加速繁殖。

2017年6月阅读原文

考研At any rate, this change will ultimately be acclaimed by an ever-growing number of both domestic and international consumers, regardless of how long the current consumer pattern will take hold.

无论如何，这一变化最终将受到越来越多的国内和国际消费者的欢迎，无论当前的消费模式将持续多久。

2010年考研阅读原文

高考Leaving aside the birth rate issue, India's economy may take off when the country achieves of educational opportunity.

撇开出生率问题不谈，印度经济可能会在该国实现教育机会的最大化后起飞。

2017年高考英语江苏卷 任务型阅读 题设

六级Well, amazingly enough, the dolphins achieved a 100 % success rate.

好吧，令人惊讶的是，海豚取得了100%的成功率。

2012年6月听力原文

考研Then increase it at a higher rate each year and essentially try to generate additional revenue.

然后每年以更高的速度增加，并从根本上努力创造额外的收入。

2016年考研阅读原文

六级The University of North Carolina at Chapel Hill, for instance, admits only that the graduation rate for its first-generation pupils is much lower than the percentage of all students who graduate within four years ( ' , 81 percent).

例如，北卡罗来纳大学教堂山分校只承认第一代学生的毕业率远远低于所有四年内毕业的学生的百分比（81%）。

2015年12月阅读原文

高考The annual death rate for adult condors has dropped from 38% in 2000 to 5%.

成年秃鹰的年死亡率已从2000年的38%下降到5%。

2016年高考英语北京卷 阅读理解 阅读C 原文

六级There is an incompatibility in the rate at which these are advancing relative to the way we're digesting it, he said.

他说：“相对于我们消化它的方式，它们的前进速度是不相容的。”。

2016年12月阅读原文

四级Global temperatures affect the rate of economic development.

全球气温影响经济发展速度。

2011年6月阅读原文

考研Using caregiver assessments and the children's self-observations, she rated each child's overall sympathy level and his or her tendency to feel negative emotions after moral transgressions.

她利用照顾者评估和孩子们的自我观察，对每个孩子的总体同情水平和他们在道德败坏后感到消极情绪的倾向进行评分。

2019年考研真题（英语二）阅读理解 Section Ⅱ

四级The divorce rate rose again during the rest of the decade as the recovery took hold

在接下来的十年里，随着经济复苏，离婚率再次上升

2012年6月阅读原文

六级In recent years, the death rate among American centenarians—people who have lived to age 100 or older—has decreased, dropping 14% for women and 20% for men from 2008 to 2014.

近年来，美国百岁老人中活到100岁或以上的死亡率有所下降，从2008年到2014年，女性和男性的死亡率分别下降了14%和20%。

2016年12月听力原文

六级But by 2014, the death rate from Alzheimer’s Disease for this age group have more than doubled, increasing from 3.8% to 8.5%, making the progressive brain disease the second leading cause of death for centenarians.

但到2014年，这一年龄组的阿尔茨海默病死亡率已经翻了一番多，从3.8%上升到8.5%，使进展性脑病成为百岁老人的第二大死因。

2016年12月听力原文

高考The same surveys also indicate that the rate of parental involvement is greater today than it was a generation ago.

同样的调查也表明，如今父母的参与率比上一代人更高。

2015年高考英语北京卷 阅读理解 阅读D 原文

六级The graduation rate among 25- to 34-year-olds is no better than the rate for the 55- to 64-year-olds who were going to college more than 30 years ago.

25-34岁的人的毕业率并不比30多年前上大学的55-64岁的人高。

2011年6月阅读原文

考研Many people talked of the 288,000 new jobs the Labor Department reported for June, along with the drop in the unemployment rate to 6.1 percent, as good news.

许多人谈到劳工部6月份报告的28.8万个新工作岗位，以及失业率下降到6.1%，这是个好消息。

2015年考研真题（英语二）阅读理解 Section Ⅱ

考研While polls show Britons rate “the countryside” alongside the royal family, Shakespeare and the National Health Service ( ' , NHS) as what makes them proudest of their country, this has limited political support.

民意调查显示，英国人将“乡村”与皇室、莎士比亚和国家卫生局（NHS）并列为他们最自豪的地方，但这一点在政治上的支持有限。

2016年考研阅读原文

考研While polls show Britons rate "the countryside" alongside the royal family, Shakespeare and the National Health Service as what makes them proudest of their country, this has limited political support.

民意调查显示，英国人将“乡村”与皇室、莎士比亚和国家卫生局并列为他们最自豪的地方，但这一点在政治上的支持有限。

2016年考研真题（英语一）阅读理解 Section Ⅱ

六级Both bills would reduce the rate of growth in annual Medicare payments to hospitals, nursing homes and other providers by amounts comparable to the productivity savings routinely made in other industries with the help of new technologies and new ways to organize work.

这两项法案都将降低医院、疗养院和其他医疗机构的年度医疗保险费用增长率，其数额相当于其他行业借助新技术和新的工作组织方式通常节省的生产力。

2016年6月阅读原文

四级The annual inflation rate in Britain.

英国的年通货膨胀率。

2010年6月听力原文

六级Spending on such "durables" dropped at a 12% annual rate in 2008's third quarter, a 20% rate in the fourth.

2008年第三季度，这类“耐用品”的支出以12%的年率下降，第四季度为20%。

2013年6月阅读原文

六级Both bills would reduce the rate of growth in annual Medicare payments to hospitals, nursing homes and other providers by amounts comparable to the productivity savings routinely made in other industries with the help of new technologies and new ways to o

这两项法案都将降低医院、疗养院和其他医疗机构的年度医疗保险费用增长率，其数额相当于其他行业借助新技术和新方法实现的生产率节约

2016年6月六级真题（第二套）阅读 Section B

六级Grass-fed beef is enjoying a 25-30% annual growth rate.

草食牛肉的年增长率为25-30%。

2019年12月六级真题（第三套）阅读 Section B

六级( ' , Harvard, for example, boasts a six-year graduation rate for underrepresented minority groups of 98 percent)Christian Vazquez, a first-generation Yale graduate, is another exception, his success story setting him far apart from students such as Nijay.

（例如，哈佛大学就以代表人数不足的少数群体六年毕业率高达98%而自豪）耶鲁大学第一代毕业生克里斯蒂安·巴斯克斯（Christian Vazquez）是另一个例外，他的成功经历使他与尼杰（Nijay）等学生相去甚远。

2015年12月阅读原文

考研Rather than have people simply rate their beauty compared with others, he asked them to identify an original photograph of themselves from a lineup including versions that had been altered to appear more and less attractive.

与其让人们简单地将自己的美貌与他人进行比较，他还让他们从一系列照片中辨认出自己的原始照片，包括那些被修改过的看起来越来越不吸引人的版本。

2014年考研真题（英语二）阅读理解 Section Ⅱ

六级If we can help to direct students to more of these types of campuses and help students to understand them to be realistic and accessible places, have them apply to these schools at greater frequency and ultimately get in and enroll, we are going to raise the success rate, Rubinoff said, citing a variety of colleges ranging from large state institutions to smaller private schools.

鲁宾诺夫说：“如果我们能够帮助学生进入更多的此类校园，帮助学生理解这些校园是现实的、方便的场所，让他们更频繁地申请这些学校，并最终入学，我们将提高成功率。”，列举了从大型国立机构到小型私立学校的各种学院。

2015年12月阅读原文

六级Their approach is flexible enough that in principle other important quality-of-life changes could be incorporated—for example, decreases in total emissions of pollutants and declines in crime rate.

他们的方法足够灵活，原则上可以纳入其他重要的生活质量变化，例如污染物排放总量的减少和犯罪率的下降。

2018年6月六级真题（第三套）阅读 Section C

高考In a further twist, birth rate is highest in poorly educated rural areas and lowest in highly educated urban areas.

另一方面，出生率在教育程度低的农村地区最高，而在教育程度高的城市地区最低。

2017年高考英语江苏卷 任务型阅读 原文

四级As a matter of fact, consumers expressed higher satisfaction with the one-star facilities, the lowest rated, than with the five-star ones.

事实上，消费者对最低评级的一星级设施的满意度高于五星级设施。

2016年6月阅读原文

四级If the food situation continues to worsen, entire nations will break down at an ever increasing rate.

如果粮食状况继续恶化，整个国家将以越来越快的速度崩溃。

2016年6月阅读原文

四级"If you ask Japanese students to list the positive attributes they expect in a romantic partner, they rate highly things like loyalty, commitment and devotion," says O'Sullivan.

O'Sullivan说：“如果你让日本学生列出他们期望浪漫伴侣具备的积极品质，他们会对忠诚、承诺和奉献等方面给予很高的评价。”。

2013年6月阅读原文

高考By analysing the numbers, it found the average mother works 119 hours a week, 40 of which would usually be paid at a standard rate and 79 hours as overtime.

通过分析这些数字，研究发现，母亲平均每周工作119小时，其中40小时通常按标准工资支付，79小时加班。

2015年高考英语四川卷 阅读理解 阅读C 原文

六级According to social psychologist Brian Nosek, executive director of the Center for Open Science, the average data-sharing rate for the journal Psychological Science, which uses the badges, increased tenfold to % from 2013 to 2015.

根据社会心理学家、开放科学中心执行主任布赖恩·诺斯克（Brian Nosek）的说法，使用徽章的《心理科学》杂志的平均数据共享率从2013年到2015年增加了10倍，达到%。

2017年12月六级真题（第二套）阅读 Section B

六级Their bank savings rate dropped to zero.

他们的银行储蓄率降到了零。

2012年12月阅读原文

考研Despite attempts by the Church to strong-arm this new generation of logicians and rationalists, more explanations for how the universe functioned were being made, and at a rate that the people-including the Church -could no longer ignore.

尽管教会试图加强这一新一代逻辑学家和理性主义者的力量，但对宇宙如何运行的更多解释正在形成，并且以包括教会在内的人们无法再忽视的速度出现。

2020年考研真题（英语一）阅读理解 Section Ⅱ

六级Thoughts turn first to some sort of global statistic, some indicator which would rate the wealth of nations in both economic and environmental terms and show a relationship between the two.

人们首先想到的是某种全球统计数据，某种指标可以从经济和环境两方面对各国的财富进行评级，并显示两者之间的关系。

2016年6月阅读原文

六级Tennessee State's overall graduation rate is a tiny 39 percent, but at least it has a smaller gap between the outcomes for first-generation students and those of their peers.

田纳西州的整体毕业率只有39%，但至少第一代学生的成绩与同龄人相比差距较小。

2015年12月阅读原文

四级Once you get beyond the initial learning curve, knitting and crocheting can lower heart rate and blood pressure.

一旦你超过了最初的学习曲线，编织和钩针可以降低心率和血压。

2017年12月四级真题（第三套）阅读 Section B

高考But while increasing health was a typical feature of the 20th century, declining birth rate could be a defining one of the 21st.

虽然健康水平的提高是20世纪的一个典型特征，但出生率的下降可能是21世纪的一个决定性特征。

2017年高考英语江苏卷 任务型阅读 原文

高考In the north of india, the population is booming due to high birth rates, but in the south, where most economic development is taking place, birth rate is falling rapidly.

在印度北部，由于高出生率，人口正在迅速增长，但在经济发展最为迅速的南部，出生率正在迅速下降。

2017年高考英语江苏卷 任务型阅读 原文

高考The birth rate in the 21st century may be much than it was in the 20th.

21世纪的出生率可能比20世纪要高得多。

2017年高考英语江苏卷 任务型阅读 题设

高考The impact of dropping birth rate on developing countries may not be but disastrous.

出生率下降对发展中国家的影响可能不是灾难性的，而是灾难性的。

2017年高考英语江苏卷 任务型阅读 题设

四级Blood pressure and heart rate are typically at their lowest levels during sleep.

血压和心率通常在睡眠时处于最低水平。

2016年6月四级真题（第一套）听力 Section C

考研Laughter does produce short-term changes in the function of the heart and its blood vessels, boosting heart rate and oxygen consumption.

笑确实会使心脏及其血管的功能发生短期变化，提高心率和耗氧量。

2011年考研真题（英语一）完形填空 Section Ⅰ

六级Standard & Poor's and Moody's Investors Service rate the level of risk of many corporate and government bonds.

标准普尔和穆迪投资者服务公司对许多公司和政府债券的风险水平进行评级。

2014年6月阅读原文

高考Hospital patients who see tree branches out their window are likely to recover at a faster rate than patients who see buildings or sky instead.

看到窗外树枝的医院病人比看到建筑物或天空的病人恢复得更快。

2019年高考英语全国卷I 阅读理解 七选五 原文

四级By following individuals over time, Salthouse said, we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline.

索尔特豪斯说，随着时间的推移，通过跟踪个体，我们可以洞察认知变化，并可能发现减缓认知下降速度的方法。

2016年6月阅读原文

高考I can certainly change that for you, but there will be a change in the room rate.

我当然可以为您更改，但房价会有所改变。

2016年高考英语全国卷1 听力 原文

四级We encourage students to go on to college whether they are prepared or not, or have a clear sense of purpose or interest, and now have the highest college dropout rate in the world

我们鼓励学生继续上大学，不管他们是否有准备，或者有明确的目标或兴趣，现在他们的大学辍学率是世界上最高的

2013年12月阅读原文

四级Nonetheless, physicians say that they look at the collective data and a clear picture emerges: that the salt, sugar, fat and processed foods in the American diet contribute to the nation's high rate of obesity, diabetes and heart disease.

尽管如此，医生们说，他们查看了这些集体数据，一幅清晰的画面浮现出来：美国饮食中的盐、糖、脂肪和加工食品导致了美国肥胖、糖尿病和心脏病的高发病率。

2018年12月四级真题（第一套）阅读 Section B

考研Most of the money would come from a penny-per-letter permanent rate increase and from shifting postal retirees into Medicare.

大部分资金将来自每封信一便士的永久性加息，以及将邮政退休人员转入医疗保险。

2018年考研阅读原文

四级And the inflation rate is there for comparison.

通货膨胀率是可以比较的。

2010年6月听力原文

六级similarly, people rated cars, clocks, and watches with wide faces as more dominant-looking than narrow-faced ones, and preferred them—especially in competitive situations.

同样，人们认为宽脸的汽车、钟表和手表比窄脸的更具优势，尤其是在竞争激烈的情况下。

2019年12月六级真题（第三套）阅读 Section A

四级We wanted to know if the length of time food is in contact with a contaminated surface affected the rate of transfer of bacteria to the food.

我们想知道食物与污染表面接触的时间长短是否会影响细菌向食物的转移速度。

2018年12月四级真题（第三套）阅读 Section B

考研given the current divorce rate of nearly 50 percent, that amounts to millions of cases in the United States every year—a virtual epidemic of failed conversation.

鉴于目前的离婚率接近50%，在美国每年有数百万起离婚案件——这实际上是一种失败对话的流行病。

2010年考研真题（英语二）阅读理解 Section Ⅱ

四级Companies like Intel developed faster microprocessors, so personal computers could process the incoming signals at a more rapid rate.

像英特尔这样的公司开发了更快的微处理器，因此个人电脑可以更快地处理输入信号。

2017年12月四级真题（第三套）阅读 Section A

四级Phone lines could only transmit information at a limited rate.

电话线只能以有限的速率传输信息。

2017年12月四级真题（第三套）阅读 Section A

四级Creating the highest dropout rate in the developed world.

创造了发达国家最高的辍学率。

2013年12月阅读原文

六级After the personal-savings rate dipped to zero in 2005, the shock of the economic crisis last year prompted people to snap shut their wallets.

2005年个人储蓄率降至零后，去年经济危机的冲击促使人们迅速收起钱包。

2012年12月阅读原文

六级On the other hand, the death rate from flu dropped from 7.4% in 2000 to 4.1% in 2014.

另一方面，流感死亡率从2000年的7.4%下降到2014年的4.1%。

2016年12月听力原文

四级The divorce rate rose again during the rest of the decade as the recovery took hold.

随着经济复苏，离婚率在这十年的剩余时间里再次上升。

2012年6月阅读原文

四级when nearly one-quarter of the workforce was unemployed, the divorce rate had declined by around 25% from 1929 But this doesn't mean people were suddenly happier with their marriages.

当近四分之一的劳动力失业时，离婚率比1929年下降了25%左右，但这并不意味着人们突然对婚姻感到更幸福。

2012年6月阅读原文

四级By following individuals over time," Salthouse said, "we gain insight in cognition changes, and may possibly discover ways to slow the rate of decline."

索尔特豪斯说：“随着时间的推移，通过跟踪个体，我们可以洞察认知变化，并可能发现减缓认知下降速度的方法。”

2016年6月四级真题（第一套）阅读 Section C

四级The author tends to believe that high unemployment rate deprives many people of job opportunities.

作者倾向于认为高失业率剥夺了许多人的就业机会。

2012年12月阅读原文

六级A flagship university in the South, the school graduates just 16 percent of its first-generation students, despite its overall graduation rate of 71 percent.

作为南方的一所旗舰大学，该校第一代学生的毕业率仅为16%，尽管其总体毕业率为71%。

2015年12月阅读原文

四级The system Medicare developed to rate nursing home quality is of little help to finding a satisfactory place.

为评估养老院质量而开发的医疗保险系统对找到一个令人满意的地方几乎没有帮助。

2016年6月阅读原文

六级While the school usually graduated about 90% of its whites, the graduation rate of its blacks and Latinos had dipped to 63% by 2007.

虽然该校通常90%的白人毕业，但到2007年，黑人和拉丁美洲人的毕业率已降至63%。

2011年6月阅读原文

六级Moreover they site several advantages: alleviation of school overcrowding, strengthen family relationships, lower dropout rates, the facts that students are allowed to learn at their own rate, increased motivation, higher standardized test scores, and reduced discipline problems.

此外，他们还发现了一些优势：缓解学校过度拥挤、加强家庭关系、降低辍学率、允许学生以自己的速度学习、提高动机、提高标准化考试分数和减少纪律问题。

2013年12月听力原文

四级If the Great Depression is any guide, we may see a drop in our sky high divorce rate.

如果大萧条可以作为指导的话，我们可能会看到我们天高的离婚率有所下降。

2012年6月阅读原文

四级when nearly one-quarter of the workforce was unemployed, the divorce rate had declined by around 25% from 1929 But this doesn't mean people were suddenly happier with their marriages

当近四分之一的劳动力失业时，离婚率比1929年下降了25%左右，但这并不意味着人们突然对婚姻感到更幸福

2012年6月阅读原文

四级bring about a drop in the divorce rate

使离婚率下降

2012年6月阅读原文

四级The economic recovery will see a higher divorce rate

经济复苏将带来更高的离婚率

2012年6月阅读原文

六级Water Usage: Over the past century, human use of fresh water has increased at more than double the rate of population growth.

水的使用：在过去的一个世纪里，人类对淡水的使用以两倍于人口增长率的速度增长。

2013年12月阅读原文

考研One Gallup poll found that 20 percent of Americans who have been unemployed for at least a year report having depression, double the rate for working Americans.

一项盖洛普民意调查发现，失业至少一年的美国人中有20%的人患有抑郁症，是在职美国人的两倍。

2017年考研真题（英语二）完形填空 Section Ⅰ

六级Insurance can be purchased at a lower rate during the young years.

年轻时可以以较低的费率购买保险。

2017年12月六级真题（第二套）听力 Section C

高考The steam-powered printing press was still in its early stages; the literacy rate in england was under 50%.

蒸汽动力印刷机仍处于早期阶段；英国的识字率不到50%。

2018年高考英语浙江卷 阅读理解 阅读A 原文

六级Elite universities tend to graduate first-generation students at a higher rate.

精英大学倾向于以更高的比率毕业第一代学生。

2015年12月阅读原文

六级Harvard, for example, boasts a six-year graduation rate for underrepresented minority groups of 98 percent.

例如，哈佛大学就以其代表性不足的少数群体的六年毕业率高达98%而自豪。

2015年12月六级真题（第三套）阅读 Section B

六级In China, the household-savings rate exceeds 20%.

在中国，家庭储蓄率超过20%。

2012年12月阅读原文

高考The sense of excitement and tension levels rise suddenly though, as does your heart rate, as you move closer to them.

然而，当你靠近他们时，兴奋感和紧张感水平会突然升高，心率也会随之升高。

2015年高考英语重庆卷 阅读理解 阅读D 原文

六级Lower reading achievement scores and grades in fifth grade contributed to reduced grades in middle school and thereby contributed to a 40% lower high school graduation rate.

五年级较低的阅读成绩和成绩导致中学成绩下降，从而导致高中毕业率下降40%。

2018年12月六级真题（第一套）阅读 Section C

六级(Harvard, for example, boasts a six- year graduation rate for underrepresented minority groups of 98 percent. )

（例如，哈佛大学以其代表性不足的少数群体的六年毕业率高达98%而自豪。）

2015年12月大学英语六级考试真题（一）

六级According to social psychologist Brian Nosek, executive director of the Center for Open Science, the average data-sharing rate for the journal Psychological Science, which uses the badges, increased tenfold to 38% from 2013 to 20 Funders, too, are increasingly adopting an open-data policy .

根据开放科学中心执行主任、社会心理学家Brian Nosek的说法，使用徽章的《心理科学》杂志的平均数据共享率从2013年到20年增加了10倍，达到38%

2017年12月英语六级考试真题（卷二）

六级Articles in magazines and newspapers and special reports on radio and television reflect the concern of many Americans about the increasing drop-out rate in our junior and senior high schools.

杂志、报纸上的文章以及广播和电视上的特别报道反映了许多美国人对我们初中和高中辍学率不断上升的担忧。

2008年6月英语六级真题

六级The high student drop-out rate is not a recent development.

高学生辍学率不是最近才出现的。

2008年6月英语六级真题

六级We do this by altering our metabolic(新陈代谢的) rate, shivering or sweating.

我们通过改变我们的新陈代谢来做到这一点(新陈代谢的) 速率、颤抖或出汗。

2008年12月英语六级真题

六级It probably has something to do with the fact that nicotine is an appetite suppressant and appears to up your metabolic rate.

这可能与尼古丁是一种抑制食欲的药物，似乎会提高你的代谢率有关。

2008年12月英语六级真题

六级Like African-Americans, Mexican-Americans are increasingly relegated to (降入)segregated, substandard schools, and their dropout rate is the highest for any ethnic group in the country.

与非裔美国人一样，墨西哥裔美国人也越来越多地被降级为(降入)种族隔离、不达标的学校，其辍学率是全国所有种族群体中最高的。

2008年12月英语六级真题

六级The result-----with brown hair, the woman was rated more capable and she was offered a higher salary than when she had a golden or red hair.

结果是——棕色头发的女人被认为更有能力，而且她的薪水比她金色或红色头发的时候高。

2009年12月英语六级真题

六级Many respondents rate women with golden hair as less intelligent than other people and red hair as more temperamental.

许多受访者认为金色头发的女性不如其他人聪明，红色头发的女性更有气质。

2009年12月英语六级真题

六级The United States once had the highest graduation rate of any nation.

美国曾经是所有国家中毕业率最高的。

2011年6月英语六级真题

六级Since 1982 tuitions have been rising at roughly twice the rate of inflation.

自1982年以来，学费的上涨速度大约是通货膨胀率的两倍。

2011年6月英语六级真题

四级At any rate, the results have been remarkable.

无论如何，结果是显著的。

1992年1月大学英语四级(CET-4)真题

四级The rate and depth of your breathing increases.

你的呼吸频率和深度都会增加。

1992年1月大学英语四级(CET-4)真题

四级The key to fitness is exercising the major muscle groups vigorously (强有力的) enough to approximately double the heart rate and keep it doubled for 20 to 30 minutes at a time.

健身的关键是大力锻炼主要肌肉群(强有力的) 足以使心率大约加倍，并一次保持加倍20到30分钟。

1992年1月大学英语四级(CET-4)真题

四级There are a few managers who are lucky enough to have the service of that rate kind of secretary who can take care of all sorts of letter writing with no more than a quick note to work from.

有一些经理足够幸运，能够得到这种级别的秘书的服务，他们只需要一张快速的便条就可以处理各种信件。

1993年1月大学英语四级(CET-4)真题