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》

You can either drop it off at my class or bring it to my office.

你可以在我的课上给我或者把它带到我的办公室。

youdao

Some students often doze off in class.

有些学生经常在课堂上打瞌睡。

youdao

Another group of researchers interviewed parents and children from 124 well-off white middle-class families in three English cities.

ECONOMIST: Private education

With its low-end workstation and server markets coming under attack from economy-class machines using off-the-shelf Intel chips and Microsoft NT software, Palo Alto, Calif.

FORBES: Will there be Java everywhere?

These youngsters are aware of the advantages of their better-off middle class counterparts, he suggests, but have diminishing expectations of gaining them for themselves.

BBC: 'Angry young men' lack optimism