It is also important to note that the study found only a correlation, as researchers did not prove for certain that optimism leads to a longer life.
还值得注意的是，该研究只是发现了一种关联，因为研究人员并不能明确证明乐观与长寿有必然联系。
A positive learning attitude can not only improve the quality of study but also lay a good foundation for lifelong learning.
积极的学习态度不仅能提高学习的质量，而且能为终身学习打下良好的基础。
So far, only one protein has been targeted for study as a potential drug.
到目前为止，只有一种蛋白质被作为潜在的药物进行研究。
I told my children that it was quite necessary for them to study hard and that it was their only chance to change their lives.
我告诉我的孩子，必须努力学习，这是改变生活的唯一机会。
In the meantime, let us study things which are no more. It is necessary to know them, if only for the purpose of avoiding them.
在此期间，让我们研究研究那些已经不存在的东西，认识那些东西是必要的，即使仅仅是为了避开它们。
Before you take the SUV out for a celebratory spin, though, it is worth bearing in mind that this is only one study, and, like all such, it has its flaws.
在你开着SUV出去庆祝一番之前，然而，值得记住的是，这只是一项研究，而且，跟所有这一类相似，它有自身的缺点。
Only a future mechanism of disease study with a biologic marker for depression can clearly identify which of the . . . hypotheses is most pertinent.
只有将来采用抑郁生物学标志的疾病机制研究才能明确哪一种假设是最贴切的”。
“I would be surprised if there were different findings for older children, but our study only looks at first graders so we can’t be certain,” Milkie said.
“如果对其他年级学生的结果不一样的话，将会出乎我的意料。但是我们的研究仅仅是关注一年级的，所以我们也不能肯定，”米尔琪说。
A new study suggests that being married is a significant factor in getting treatment faster - but only for men.
一项新的研究表明，婚姻是决定人们更快治疗心脏病的重要因素之一，但这一点仅适用于男性。
The study itself is only part of an international scientific effort known acronymically as GARP (for Global Atmospheric Research Program).
这项研究只是GARP（全球大气研究项目组）国际研究工作的一部分。
For example, though it's often claimed that most women think they are too fat, only 16 percent of normal-weight women in the study perceived themselves as overweight.
比如，尽管很多女性声称她们认为自己太胖了，但调查中只有16%的体重正常的女性认为她们自己超重。
According to a study of New York City, the home-ownership rate was second only to income as an explanation for different crime rates.
据纽约的一项研究显示，作为不同犯罪率的说明，自有住房率仅次于收入排在第二位。
However, the volunteers were followed for only a couple of years, on average, and the study can't guarantee the long-term safety of the approach.
不过，研究平均只跟踪志愿者几年的时间，不能担保这种方法的长期效果。
Most Linux distributions include basic VNC clients and servers, so it should take only a little study and practice for you to try out the ideas in this article.
多数Linux发行版包含基本的VNC客户端和服务器，所以您只需要很少的学习和实践就可以理解本文的思想。
The NHS study suggests that energy expenditure is responsible for only a quarter of hospital carbon emissions.
NHS的研究表明，能源消耗只占医院全部碳排放量的20％。
History is not only fun for people who study it, but also for the people who research it.
历史不仅仅对学习历史的人是有趣的，对在这一领域进行研究的人也是有趣的。
According to one study, some kinds of cocoa could not only taste good, but be good for you, too.
一项研究表明，某些可可品种不仅味道好，而且对身体也很有益。
However, only 150 women in the study took such combos for more than two months, and they were compared to women taking combos for a shorter time - not to women using tamoxifen alone.
但是，在其研究中只有150个妇女合用药物超过两个月，而且她们是和使用时间比较短的妇女比较的——而不是和只服用他莫昔芬的妇女相比。
The study found that there were no beneficial effects for people who took aspirin only once a week.
研究发现，如果每周只服用一次阿司匹林，则没有任何有益的效果。
This is a new topic, Shakhova concedes, and the findings are only a starting point for further study.
夏克霍娃承认这是一个新课题，调查结果只是进一步研究的出发点。
The key insight uncovered by the study of complex systems in recent years is this: the only way for a system to evolve into something new is to have a flexible structure.
近年来，通过研究复杂系统得出的主要洞见就是：一个系统要想进化成某种新的东西，唯一的途径就是要有一个柔性结构。
At present, only 12% of British readers pay anything for online news - the smallest proportion of any nation in the study.
目前，只有12%的英国读者花钱阅读网络新闻，是该研究中比例最小的国家。
One study showed that 79% of test users scanned any new page they visited, while only 16% read the page word-for-word.
有一个调查显示，79%的受访用户只是在浏览一个新页面，只有16%的用户会逐字逐句去读一个页面。
Ultimately, only 34 people lost that much and stuck with the study long enough for analysis.
最终，仅有34位达到了预期目标，并留有足够时间进行原因分析与研究。
Ultimately, only 34 people lost that much and stuck with the study long enough for analysis.
最终，仅有34位达到了预期目标，并留有足够时间进行原因分析与研究。
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