Generally we call... classes our... like the actual classes you take, and courses are our majors.

一般情况下我们会说编号……号码就代表了我们上的课，课程就是我们的专业。

MIT用数字说话 - SpeakingMax英语口语达人

So we have course one through twenty-four, although a few numbers are missing.

我们把课程从1到24进行了编号；虽然有几个号码缺失了。

MIT用数字说话 - SpeakingMax英语口语达人

And it takes a little while to learn all of the course numbers.

记下课程的编号也需要好一阵子。

求学热十足的学校 - SpeakingMax英语口语达人

You have buildings that are numbered. Classes are numbered.

建筑物使用数字编号的，课程也是编号的。

求学热十足的学校 - SpeakingMax英语口语达人