One hundred fifty plus office hours is the current tally that you'll see starting to appear on the course's website, thanks to our 60 plus person staff and you'll also see online soon once you have your accounts as per problem set 0 spec.

50多个小时的课时,就是你现在在课程网站上要看到的，在这里我们要感谢60多位同仁的帮助,一旦你开通账号，你就可以在线看到了。

哈佛公开课 - 计算机科学课程节选

The spec, if you want to add a little bit of color shows you obviously how you can add green and red and so forth.

如果你想添加一点颜色,说明书中详细说明了该如何添加绿色,红色等。

哈佛公开课 - 计算机科学课程节选