我在铃响前刚好有时间吃完，然后就去上第一节课了。

I had just enough time to finish eating before the bell rang and I was off to my first class.

《柯林斯英汉双解大词典》

然而，不要在个案讨论时丧失信心-因为有时会在所有重点被讨论出来前就用完一节课的时间。

However, do not despair during the case discussion - sometimes we run out of time in a single class before all of the important points are discussed.

youdao

我们总会在一节课开始前做一个小小的考试。

We always do a little test at the beginning of the course.

youdao

我再讲一个这种“精明”的短视行为的例子：不久前，一位老师在课上为我们讲解一个相当复杂的问题，而这节课是期中前的最后一节课。

Here's another example of this sort of "clever" short-sighted behavior: Recently one of our teachers was explaining something quite complex to us. It was the last class before the mid-term.

youdao

最长的英语单词——笑这是放假前的最后一节课。

It is the last lesson before the holidays.

youdao

然后在八点前吃早饭，因为第一节课都是八点开始的。

Then I usually have breakfast before 8 cause classes begin at 8.

youdao

然后在八点前吃早饭，因为第一节课都是八点开始的。

Then I usually have breakfast before 8 cause classes begin at 8.

youdao