In narrow sense, it is a chiefly social organization of men students at a college or university, usually designated by Greek letters.

从狭义上来说，它主要是学院或大学里男生的主要社会组织，通常以希腊字母命名。

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For instance, consider the contents of this directory, which looks something like a collection of letters from a college freshman.

例如，可以考虑下面这个目录中的内容，它看起来像一个大学一年级新生的信件集合。

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With next fall's college freshman class expected to approach a record 2.9 million students, hundreds of thousands of applicants will soon be receiving the dreaded letters.

由于今年秋季美国大学新生班预计将容纳创纪录的290万名学生，数十万申请者将很快会收到这种恐怖的信件。

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But an article in the sports section of a Philadelphia newspaper entitled, College Commitments, listing local athletes who had signed letters of intent to compete in athletics at Division I colleges, highlights the fact that athletics can be a game changer when it comes to getting admitted to elite colleges.

FORBES: Grit, Grades And Lacrosse: How To Cradle Your Way Into Elite Colleges