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 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。
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。
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。
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。
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 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。
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。
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。
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。
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