Most familes do not have electricity and may not even have candles for their children to study by.
大多数家庭没有电，甚至可能没有蜡烛供孩子学习用。
A new study by the University of Minnesota and McGill University in Montreal looks at where, and how far, this decline is occurring.
明尼苏达大学和蒙特利尔的麦吉尔大学的一项新研究着眼于这种衰退发生的区域和程度。
That is one reason why America absorbs immigrants better than many other rich countries, according to a new study by the University of California.
根据加州大学的一项新研究，这是美国比其他许多富裕国家更好地吸收移民的原因之一。
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 study by the University of Florida claims that putting mirrors in your dining room will help weight loss because they actually make junk food taste worse.
佛罗里达大学的一项研究称，在餐厅里放镜子有助于减肥，因为镜子会让垃圾食品尝起来更难吃。
A study by the Centre for Research on the Epidemiology of Disasters finds that between 1980 and 2007, nearly 8,400 natural disasters killed more than two million people.
灾害流行病学研究中心的一项研究发现，在1980年至2007年间，近8400起自然灾害导致200多万人死亡。
The gold standard study by Harvard and Columbia University scholars found that even in high-poverty schools, teachers consistently had a huge positive or negative impact.
哈佛大学和哥伦比亚大学的学者们进行的“黄金标准”研究发现，即便是在极度贫困的学校，教师也始终会产生巨大的，或积极或消极的影响。
A study by the Center for Research on the Epidemiology of Disasters finds that, between 1980 and 2007, nearly 8,400 natural disasters killed more than two million people.
灾害流行病学研究中心的一项研究发现，在1980年至2007年间，近8400起自然灾害导致200多万人死亡。
But a study by Sarah Brosnan and Frans de Waal of Emory University in Atlanta, Georgia, which has just been published in Nature, suggests that it is all too monkey, as well.
但是，佐治亚州亚特兰大市埃默里大学的莎拉·布鲁斯南和弗朗斯·德·瓦尔的一项研究表明，它确实是太像猴子了。这项研究近期发表在了《自然》杂志上。
A case in point is the study by Linda Sax at UCLA, who used data from a large national survey of college freshmen to evaluate the effect of single-sex versus coeducational high schools.
加州大学洛杉矶分校的琳达·萨克斯的研究就是一个恰当的例子，她利用了一项全国性的大一新生调查来评估单性别高中和男女混合高中的效果。
A study by the University of Manchester calculated the emissions of CO2—the main greenhouse gas responsible for climate change—at every stage of microwaves, from manufacture to waste disposal.
曼彻斯特大学的一项研究计算了二氧化碳（造成气候变化的主要温室气体）在微波炉生产的每个阶段的排放量，从产品制造到废物处理。
At present there are many online courses and we can choose some to study by ourselves.
目前有很多在线课程，我们可以自己选择一些来学习。
It is always more important to know how to study by oneself than to memorize some formulas.
知道如何自学永远比记住一些公式更重要。
According to a study by Australian National University, Australian children and Chinese children have the same level of eyesight before they start school, but once they enter primary school, Chinese children only spend about an hour a day outside, while Australian children spend three to four hours each day in the sunshine.
澳大利亚国立大学的一项研究显示，澳大利亚的孩子和中国的孩子在入学前的视力水平相同。但是一旦他们进入小学，中国的孩子每天只会在户外度过一个小时，而澳大利亚的孩子每天在阳光下待三到四个小时。
This is from a classic study by Tolman where rats were taught to run a maze.
这是托尔曼的经典实验——训练白鼠走迷宫。
Our school hopes to improve students' abilities to study by themselves and work in groups.
我们学校希望提高学生的自学能力和小组合作能力。
According to a study by Catalyst, between 2010 and 2015 the share of women on the boards of global corporations increased by 54 percent.
根据Catalyst的一项研究，2010年至2015年间，全球公司董事会中女性的比例增加了54%。
But a new study by the RAND Corporation suggests a more mixed picture.
但是美国兰德公司最近进行的研究提出了毁誉参半的评价。
This was backed up by a 1996 study by Christine Harris and Nicholas Christenfeld.
这一解释是基于1996年克里斯汀·哈里斯与尼古拉斯·克里斯坦菲尔的研究基础之上的。
The findings are backed by a study by Kazuhiko Fukuda of Fukushima University in Japan.
日本福岛大学福田一彦博士的一项研究支持了这些发现。
The study by researchers at University Hospital Basel is not the first to note this problem.
巴塞尔大学医院的研究人员不是第一个注意这个问题的。
But a new study by economists at the IMF reckons that the Harvard study was seriously flawed.
但国际货币基金组织的研究认为哈佛的研究结果存在严重错误。
Running on a regular basis can slow the effects of ageing, a study by US researchers shows.
一项美国研究成果表明，有规律的跑上一跑可以延缓衰老的影响。
But a study by a couple of business-school professors says splurging now makes you happier later.
但商学院几个教授的一项研究表明，挥霍后你会更快乐。
Just going more concrete can be enough according to a recent study by Hansen and Wanke (2010).
表达的更具体一点就行！汉森和万科(2010)最近一项研究这样告诉我们。
A 2007 study by us researchers showed that the system was much more porous than previously thought.
一项2007年美国学者的研究表明，该系统比先前认为的更加多孔。
Yet a recent study by the Rand Corporation reveals that more than half of asthmatic kids don't use it.
然而，兰德公司进行的最新研究显示，半数以上患哮喘的孩子没用这种药。
Watching romantic comedies can spoil your love life, a study by a university in Edinburgh has claimed.
爱丁堡一所大学的研究声称，浪漫喜剧电影会影响你的爱情生活。
That's according to a new study by David Smith and colleagues from the University of Aberdeen in the UK.
这是从英国阿伯丁大学的大卫·史密斯和他的同事们的一项新研究得来的。
That's according to a new study by David Smith and colleagues from the University of Aberdeen in the UK.
这是从英国阿伯丁大学的大卫·史密斯和他的同事们的一项新研究得来的。
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