我现在不得不走了，因为我得准时去上课。

I have to go now because I must be punctual for class.

youdao

我得准时去上课。

I must be punctual for class.

youdao

他们每一次训练时间都会准时上课，几乎每一个人都有一些英语知识。即使有个别教练不懂英语，也会尽自己最大努力去阐述重点部分，最后基本上都能有所成效。

They always show up for the training, almost every one has some knowledge of English and even those who don't, do their best to explain the most important things and somehow always succeed.

youdao