In an interview with the Associated Press prior to his departure, the president spoke of his desire to break free of the last vestiges of the Cold War.

VOA: standard.2009.07.06

And so, it really is a course aimed at students with little or no prior programming experience.

因此，这真的只是,一门针对无经验,或者极少经验的学生的课程。

麻省理工公开课 - 计算机科学及编程导论课程节选

So the pieces we need are not only an image of Ruth, even if an imperfect image of Ruth, we also need some prior acquaintance with Ruth.

所以我们不只需要露丝的照片,甚至不能是一张不像露丝的照片,我们必须之前就熟知她才行

耶鲁公开课 - 死亡课程节选

Course assistants as we use the jargon are alumni of CS50 who return to the course for a couple of hours a week having taken it in prior years, to help you, the newest batch of students, one on one with office hours, with problem sets; and similarly do the CS function as they might in many courses.

课程助理用我们的行话说就是CS50校友0,他们在前几年一直都是一周回来几个小时,来帮助你们这些新生，在上机的时候以一对一的方式，帮助你们完成这些问题集,在很多其他课程中他们也是这么做的。

哈佛公开课 - 计算机科学课程节选