今年夏天，有两个半月时间，经济专业大四学生约瑟夫·贝克去了位于华盛顿特区的美国联邦调查局实习，而且——对，他还可以跟我们说说实习的情况。

For two and a half months this past summer, senior economics major Joseph Baker interned with the FBI in Washington, D.C., and yes, it is OK to talk about it.

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贝克斯菲尔德高中教师克里斯蒂娜·费罗认为，获得这些材料、培训老师和学生正确地使用都会十分的昂贵。

Kristina Fierro, a high school teacher in Bakersfield, said it would be expensive to get the materials, train the teachers and train the students to use the materials properly.

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巴西的亨廷顿医学生殖临床研究人员保拉.凡特贝克说，“年龄是有影响的。”

Researcher Paula Fettback, of the Huntington Medicina Reproductiva clinic in Brazil, said: ‘Age counts

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And several years later these two graduate students at Leiden by the name of Goudsmit and Uhlenbeck proposed that the electron in fact spins.

几年之后,两个莱顿的学生,古德米斯特和乌伦贝克,提出电子其实是在自旋的。

麻省理工公开课 - 固态化学导论课程节选