Translation of "Lectures" in Chinese

His lectures are very long.

他的講座很長。

Mr Smith always begins his lectures with a joke.

史密斯先生永远用玩笑开始课。

The old professor's lectures are long-winded and ponderous.

这位老教授的讲座冗长而沉闷。

- His lecture is very long.
- His lectures are very long.

他的講座很長。

Anyone can attend my lectures, but not everyone can understand them.

所有人都能来上我的课，但是不是每个人都能理解我的课。