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。

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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。

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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。

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Now a study by the Seattle Children's Research Institute shows how that idea can influence what parents order for their children.

VOA: special.2010.01.27

Other studies, some of them-- Well, here's another study by Rene Baillargeon looking at the same thing in a different way.

还有些其他的研究,这是勒奈·巴亚热昂所进行的另一项研究,通过不同的方式去观察同一个物体

耶鲁公开课 - 心理学导论课程节选

So one very simple study by Spelke and Baillargeon: Have babies shown a block with a bar going back and forth like that.

斯皮克和巴亚热昂做了一个简单的研究,向婴儿呈现一个木块,木块中间有一个能够来回移动的木杆,就像这个样子

耶鲁公开课 - 心理学导论课程节选

An influential study by researchers at Harvard and Wharton business schools found just that in 2004.

ECONOMIST: The Wallenbergs

The proof given is a study by economists Chong, La Porta, Lopez-de-Silanes, and Shleifer from 2012.

FORBES: Is The U.S. Postal Service The World's Most Efficient?

HEMPSTEAD, New York (CNN) -- Frank Sinatra's life is apparently worthy of study by academic elite.

CNN: Showbuzz