A North American study says gestures like fist-pumping by victorious athletes come naturally.
北美一项研究发现，运动员在获胜后握拳振臂之类的庆祝动作是与生俱来的自然反应。
An American study played people recordings of actors delivering speeches about climate change.
一个美国研究向人们播放演员在做天气转变演讲的录音。
Another American study says obesity has become as great a threat to quality of life as smoking.
另一项美国研究发现肥胖症已成为与吸烟一样严重威胁生活质量的因素。
One American study found that interruptions take up 2.1 hours of the average knowledge worker's day.
一个美国研究发现，平均下来，一名脑力劳动者每天大约有2.1小时处于分心状态。
Women who are optimistic have a lower risk of heart disease and death, an American study shows.
一向美国调查显示，乐观的妇女患心脏病和死亡的风险比较低。
An American study found that Mexican truckers had fewer accidents in the United States than their American counterparts.
美国一项研究表明，在美国墨西哥籍卡车司机的事故率要比美国同行低得多。
An American study found that on average a child watches 25,000 hours of television before his or her 18th birthday.
一项美国研究发现，平均每个孩子在年满18岁之前看电视的时间达25,000小时。
The drop-off in recent years in the American study of German might be another reason for young people to hit the Bücher.
近年来美国学德语的人数减少，这就可能成为将来的一个理由让年轻人蜂拥而上捡起德语课本。
His conclusions, published this week in Nature Climate Change, confirm for the tropics the findings for temperate climes of a recent American study.
他的结论发表在本周的《自然气候变化》杂志上，其在热带地区验证了最近美国研究温带气候所得到的发现。
An American study has found that tea drinkersenjoying a daily cuppa could be 35% less likely tosuffer a heart attack or another major cardiovasculardisease.
一项美国的研究发现，饮茶者每天喝一杯茶可能使患心脏病或其他重大的心血管疾病的几率降低35％。
WASHINGTON: an American study has revealed that the first two points that people look at to tell whether a face is familiar to them or not are around the nose.
华盛顿报道：一项美国的研究显示人们区分是否是熟悉的面孔最先看的两点是在鼻子周围。
The intriguing idea comes from an American study of 40 men and women whose relationships had ended against their wishes. All said the experience left them deeply hurt.
这项试验灵感来源一项面向40名男女的研究，他们都刚刚结束一段感情，均称内心伤痛不浅。
Based on this American study alone, it's too early to say for sure whether girls are more at risk than boys, but we do know girls tend to be less active than boys which could play a part.
仅在这家美国研究的基础上，就很肯定地说女孩比男孩的风险是否更多，还为时过早，但我们知道女孩似乎没男孩积极，这一点可以是一部分原因。
Since the American study of 1997 raised the spectre of a connection between weight and early puberty, scientists have become convinced that there is at least some link with the obesity epidemic.
自从美国1997年的那项研究提出体重与青春发育期提前之间隐约存在联系，科学家已经相信，青春发育期至少与肥胖流行有某种联系。
Now, a new American study demonstrates what may be a good effect connected to drinking coffee. It found a link between drinking coffee and a decrease in the risk of gallbladder disease in men.
现在，美国一项新的研究表明，喝咖啡也许有一种好的功效，那就是，喝咖啡与男子得胆囊疾病机会的减少有关。
Another American study, this time of women who left work to have children, found that all but 7% of them wanted to return to work. Only 74% managed to return, and just 40% returned to full-time jobs.
另一项针对这段时期离职生小孩的美国研究表明，仅有7%的女性想回到职场，而这之中仅有74%做到了，并且这其中只有40%回到了全职的工作。
A study from an American university says that men seldom do the same share of housework.
美国一所大学的一项研究表明，男性很少做同样多的家务。
There are two other kinds of research that have thrown some light on the origins of the Native American population; they involve the study of teeth and of languages.
还有另外两种研究对印第安人的起源提供了一些线索；它们包括对牙齿和语言的研究。
A recent study said that 40% of American teens claim to have been in a car when the driver used a cell phone in a way that put people in danger.
最近的一项研究表明，40%的美国青少年称他们遇到过驾驶时玩手机的司机，这让人处于危险之中。
We believe that the number of people who fit that definition includes the majority of American workers, which prompted us to begin a study of workaholism in the U.S.
我们认为，符合这一定义的人群包括大部分美国工人，这促使我们开始对美国的迷恋工作现象进行研究。
The American side of the falls were shut off in 1969 to study the buildup of rock at the base of the falls.
1969年，美国一侧的瀑布被断流以研究瀑布底部的岩石堆积。
A study published last year in The American Journal of Clinical Nutrition found that people who sleep more tend to eat less unhealthy food than their peers who don't get as much rest.
去年发表在《美国临床营养学期刊》上的一项研究发现，睡眠多的人比他们睡眠较少的同龄人更少吃不健康的食品。
According to a study by George Borjas, a Harvard economist, immigration reduced the wages of American high-school dropouts by 9% between 1980-2000.
根据哈佛大学经济专家George Borjas的一项研究，外来移民使美国高中辍学生的工资在1980-2000年间减少了9%。
A 2001 study cataloged all the ways in which the term "Black" carried connotations that were more negative than those of "African American".
2001年的一项研究列出了“黑人”一词比“非裔美国人”更负面的全部含义。
A new study in the Journal of the American Geriatrics Society looked at this question by examining the personality characteristics of 246 children of people who had lived to be at least 100.
《美国老年医学会杂志》上发表的一项新研究通过考察246名孩子的性格特征研究了这个问题，这些孩子都是100岁以上老人的后代。
Moreover, historians study people across the nation, but much literary scholarship called "American" actually examines works produced in northeastern states.
此外，历史学家研究的是全国各地的人，但很多被称为“美国人”的文学学者实际上研究的是美国东北部各州的作品。
Moreover, historians study people across the nation, but much literary scholarship called "American" actually examines works produced in northeastern states.
此外，历史学家研究的是全国各地的人，但很多被称为“美国人”的文学学者实际上研究的是美国东北部各州的作品。
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