In April 1999, a pair of students at Columbine High School in Colorado killed a dozen fellow students and one teacher, as well as themselves.

1999年4月的一天，两名学生冲进美国科罗拉多州哥伦拜高中，在枪杀12名学生和1名教师后自尽。

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I had noticed a pair of pretty girls among the painting students in the yard.

在庭院里学绘画的学生们中我注意到一对儿漂亮的女孩。

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One of the first assignments I give the students in software engineering is to write a simple program, but to work in pairs (i.e., try pair-programming).

在软件工程学中我给学生们的第一项作业是写一个简单的程序，但让学生们成对地工作（例如，尝试成对编程）。

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In November a pair of German computer science students made a critical first step toward cracking the Wi-Fi Protected Access encryption standard, or WPA, once heralded as the solution to WEP's insecurity.

FORBES: Magazine Article

Three engineering students developed a pair of "anti-rape" undies that fend off would-be attackers with an electric shock, and in a discovery that could be a game-changer for environmentally conscious parents, scientists have figured out a way to make super-absorbent diapers from carbon dioxide.

ENGADGET: Inhabitat's Week in Green: stair-climbing vacuum cleaner, carbon dioxide diapers and a real 3D-printed face

He and Seann William Scott star as a pair of dead-end marketers shilling an energy drink to high-school students.

NEWYORKER: Role Models