第一组的人是音乐家，而第二组的人没有受过音乐训练。

The people in the first group were musicians, while those in the second group had no musical training.

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第一组的人踩室内脚踏车，第二组的人做快走运动，第三组的人在游泳池里来回地游。

Group one rode stationary bicycles, group two took brisk walks and group three swam laps in a pool.

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第一组中有近四分之三的人认为威廉姆斯先生从事管理层工作，而第二组中仅有38.5%的人这样认为。

Nearly three-quarters of the first group guessed that Mr.Williams worked at a managerial level, while only 38.5 percent of the second group thought so.

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Once a week we assembled the homeland security team which meant in the later part of the administration The Secratary of Homeland Security, 911 which was a position was created in the year after 911.

每个星期,还会组织一次国土安全组的人开会,意味着会议的第二部分,会见国土安全部部长，这个职位是在,之后的一年才创立的。

普林斯顿公开课 - 国际座谈会课程节选