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

我在铃响前刚好有时间吃完，然后就去上第一节课了。

《柯林斯英汉双解大词典》

As it was time for class, she hurried to the classroom.

因为到了上课时间，她急忙跑到教室。

youdao

For the last time, I went to the teachers' college which was regarded as the third class of my city.

最后一次，我去了师范学院，它被视为我的城市的三级院校。

youdao

If this was a class in which we were going to worry about the general problem of identity across time, this would be a problem we'd have to directly face.

如果我们要讨论的是,贯穿时间的,质的总的问题，我们就需要,直面这个问题。

耶鲁公开课 - 死亡课程节选

And then third year when I taught it which was the last time, I had 850 students in the class, making it at that point the largest course at Harvard.

到了第三年，也就是上一次开课，有850人参加，是当时哈佛人数最多的课程。

哈佛公开课 - 幸福课课程节选

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