The way I think of it is like the conversation hour for your foreign language class.

我认为这就像是,你的外语课堂上的对话时间。

耶鲁公开课 - 死亡课程节选

I have a five-hour sewing class which is really fun. I like it. It's really fun, so.

我有一堂需要持续5个小时的缝纫课，很有趣。我很喜欢。因为真的很有意思。

梦想成为时装设计师 - SpeakingMax英语口语达人

.. Let me give you a sense of, in the next half an hour and so, a sense of what you expect in this class.

我再来讲讲，接下来的半小时，我会向你们介绍下这门课的内容。

哈佛公开课 - 幸福课课程节选