I will use that to post information, maybe once in a while send an e-mail to the whole class.

我会在那上面发布通知,可能隔一段时间就会给全班群发一封邮件

耶鲁公开课 - 基础物理课程节选

And while I'm at school in class, I can use the e-books of the courses that I'm studying.

在学校上课的时候，我也可以使用那些我修的课程的电子材料。

What kind of实战 - SpeakingMax英语口语达人