But then an old Yalie who took this course when he was very young, and later became an ancient Greek historian, took the wonderfully outlandish device of answering this question.

有一位老耶鲁人在年轻时选了这门课,后来成了一名历史学家,专攻古希腊史,他极其出色地回答了这个问题

耶鲁公开课 - 古希腊历史简介课程节选

For example, let's pretend that you are speaking with a friend who had been studying for a test for some time.

例如，我们假设你跟一位朋友在聊天，他已经为一门考试复习了好一段时间。

I'm sure 课堂 - SpeakingMax英语口语达人