The chart you see here suggests that 72% of last year's students had zero prior computer science background.

这个图表显示的是%,去年修这门课的学生中,72％的人没有计算机方面的专业知识背景。

哈佛公开课 - 计算机科学课程节选

Yen worked on the course last year and she's the senior of the teaching fellows that are working on the course this year.

叶从去年开始就为这门课工作,她是今年这门课程的助教中,较为资深的一名

耶鲁公开课 - 生物医学工程探索课程节选

But it turns out actually over a third of people who took this class last year took the class because they felt depressed.

但是结果是去年有超过三分之一的人,选这门课是因为他们感觉抑郁。

哈佛公开课 - 幸福课课程节选

> So this was a Scratch project submitted by one of last year's students.

>，这是由去年一个学生完成的,一个Scratch项目。

哈佛公开课 - 计算机科学课程节选