Their genetics—including the genetics of sleep—have been studied for almost a century, and many of the genes that play a role in human sleep resemble those that control sleep in fruit flies.

它们的遗传信息已经被研究了将近一个世纪，其中包括关于睡眠的遗传信息。 许多影响人类睡眠的基因与控制果蝇睡眠的基因相似。

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In pursuit of understanding the nature of peace, I have studied the construction and operation of international orders ever since I was a graduate student well over half a century ago.

为了寻求对和平的理解，半个世纪前身为研究生的我就开始研究国际秩序的建立和运作。

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In as early as the 17th century, Leibniz took interest in and carefully studied the Chinese culture and became a forerunner of cultural exchanges between China and Germany.

早在17世纪，莱布尼茨就极为关注并认真研究中国文化，成为中德文化交流的先驱。

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In the early 20th century he studied in Mecca alongside a man named Ahmad Dahlan.

ECONOMIST: Islam in Indonesia

Taking an elective in college used to mean studying something you wanted to learn about but not necessarily major in: the mathematician who took a class in 19th century Russian literature or the French major who studied Biology 101.

CNN: Do you need a BA, MA, MBA, JD and PhD?

He studied architecture in Europe, late in the nineteenth century, then returned to his native New York and made a small fortune developing new neighborhoods in Brooklyn and Queens.

NEWYORKER: Brooklyn Circle