“听”羊羔诉苦美国研究人员说，不堪重负的绵羊会用叫声诉说苦闷。
一组美国研究人员说，他们发现了一种方法，可以把果糖转化成效能比乙醇更好的新型燃料。
A group of U. S. researchers say they have discovered a method of converting the sugar found in fruits into a new type of fuel that outperforms ethanol.
美国研究人员说，南极洲发现了两种新型恐龙化石，一种是移动迅速的食肉恐龙，另一种是巨型食草恐龙。
Two new species of dinosaur fossils, one a quick-moving meat-eater and the other a giant plant-eater, have been discovered in Antarctica, U.S. researchers said.
美国研究人员说，南极洲发现了两种新型恐龙化石，一种是移动迅速的食肉恐龙，另一种是巨型食草恐龙。
Two new species of dinosaur fossils, one a quick-moving meat-eater and the other a giant plant-eater, have been discovered in Antarctica, U. S. researchers said.
如今，随着美国的研究显示欺凌行为在上升，而父母的监督在下降，研究欺凌行为的研究人员说，给父母打电话比以往任何时候都更没用。
These days, as studies in the U.S.show bullying on the rise and parental supervision on the decline, researchers who study bullying say that calling moms and dads is more futile than ever.
这具精致而又几乎完整的遗骸化石的曝光归功于美国眼科医生亨利·克里斯坦(HenryKriegstein)，当时他打电话给研究人员说，他从一个商人手中买下了这具化石。
The exquisite and almost complete remains only came to light when an American eye surgeon, Henry Kriegstein, telephoned the researchers to say he had bought the fossil from a trader.
研究人员坚称“是的”，Eshel说美国占全球温室气体排放的28%。
The researchers insist it is. The United States, Eshel says, accounts for about 28 percent of the world's total greenhouse gas emissions.
研究人员提醒说，对于城市来说，这种倡议的可行性还有待观察，但是这个想法曾经得到美国能源部长朱棣文及其他决策者的支持。
The feasibility of such an initiative for cities remains to be seen, researchers caution, but the idea has been backed by U.S. Energy Secretary Steven Chu and other policymakers.
来自美国和加拿大几所大学的研究人员提醒说，长期体罚儿童可能会降低儿童的自控能力，而且他们的行为也会更加糟糕。
The study authors, from American and Canadian universities, warn this could lead to lower levels of self-control and poorer behavior in the long term.
尽管流行歌手和诗人总把失恋说的很痛苦，但近日，美国研究人员称，分手可能没那么难。
Despite the laments of pining pop stars and poets, U.S. researchers now think breaking up may not be so hard to do.
美国科罗拉多大学的研究人员说，这是人类普遍存在的，很难说清到底是好是坏。
It is a universal human practice and it is too complex to say it is either good or bad, a University of Colorado researcher says.
在2003年，美国国立卫生研究院发布了DNA序列元素的百科全书或者说编码，而这有助于于研究人员对我们剩余基因功能的研究。
In 2003, the NIH started the Encyclopedia of DNA Elements, or ENCODE, which supports researchers in identifying functions for the rest of our genes.
电子游戏设计师、美国卡内基·梅隆大学研究人员杰西·谢尔如是说，他和一群游戏设计师以及心理学家坚信，使公民更健康、提高工作效率、更有事可做的关键是将游戏引入生活。
He and a bevy of game designers and psychologists are convinced that the key to a society of healthier, more productive and more engaged citizens lies in bringing gaming into daily life.
温特·瑟夫曾是美国一名研究人员，曾参与过互联网的创建。他说，电视正走向iPod时代。
Vint Cerf, who helped to build the Internet while working as a researcher in America, said that television was approaching its "iPod moment".
“我们非常善于应用而且我们要继续这个非常善于应用的东西，”Levin说，为了这个原因，美国研究人员需要获取最高的速度。
"Apps are something we're very good at and something we want to continue to be very good at," Levin said. For this to happen, U.S. developers need access to the highest speeds available.
研究人员说，从1991年到1994年，12至19周岁美国人的平均血铅水平在0.015微克每毫升；1999年到2000年这一数字变为0.011微克。
The mean blood lead levels in the 12-to-19-year-olds were 1.5 micrograms per deciliter in 1991 to 1994 and 1.1 micrograms per deciliter from 1999 to 2000, researchers say.
但是他继续说，“这项提议的时间选定，与美国其它地方反对大学动物研究人员的暴力行为同时发生。”
But he went on to say that "the timing of the proposal coincided with violent ACTS against university animal researchers elsewhere in the US".
上周日，研究人员在一个大型美国科学会议上警告说，随着地球人口越来越多，越来越富，人们对匮乏资源的争夺可能会导致地球到2050年变得“面目全非”。
population competing for ever scarcer resources could make for an "unrecognizable" world by 2050, researchers warned at a major US science conference Sunday.
美国研究人员报告说，普通的止痛剂如阿斯匹林、布洛芬、对乙酰氨基酚能使人的血压升高从而增加患心脏病的风险。
WASHINGTON (Reuters) - Popular painkillers such as aspirin, ibuprofen and acetaminophen can raise blood pressure and thus the risk of heart disease among men, U. S. researchers reported on Monday.
美国塔拉哈西佛罗里达州立大学的研究人员的一系列研究表明，说“谢谢”对致谢人和被谢人双方都有好处。
Saying "thank you" may benefit both the recipient and the person who express gratitude, according to the results of studies conducted by researchers at Florida State University in Tallahassee.
美国研究人员那瓦拉说，这可能是因为天气较炎热，或白天较长的缘故。
It may be down to the hotter weather or the longer days, says US researcher Dr Kristen Navara.
若被证实，则此发现可能会通过试验并形成一种新的精神障碍的治疗方法，目前这种精神障碍影响着约1%的世界人口，美国的研究人员说。
If confirmed, the finding could lead to a test and possibly new treatments for the mental disorder that affects about 1 percent of the world's population, US researchers said.
此次在美国做的数学研究成果将于周四在华盛顿发布。知道这次研究的研究人员们评价说，这个研究结果是可以接受的，虽然没能激励美国未来的小学教师。
The researchers who led the math study in this country, to be released in Washington on Thursday, judged the results acceptable if not encouraging for America's future elementary teachers.
科学家们相信，狗能够数数。美国加利福尼亚大学的研究人员说，狗能通过它们的叫声的大小和快慢表达不同的信息。
Scientists are convinced that dogs can count and researchers at the University of California say they try to convey different messages through the pitch and pace of their barks.
上周，在美国癌症研究协会会议上，研究人员报告说，饮用咖啡降低了因前列腺癌死亡的风险。
Last week, at the American Association for cancer research meeting, researchers reported that coffee consumption reduced the risk of dying from prostate cancer.
上周，在美国癌症研究协会会议上，研究人员报告说，饮用咖啡降低了因前列腺癌死亡的风险。
Last week, at the American Association for cancer research meeting, researchers reported that coffee consumption reduced the risk of dying from prostate cancer.
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