“很抱歉错过了上次的课程，”我这样开始，因为我觉得必须解释一下缺课的原因。 我要把真实的情况告诉他们。

“I’m sorry for having missed class the other day, ” I began, and because I felt obliged to explain my absence I told them the truth.

youdao

尽可能的和至少一个与你选了同一门课的同学交朋友，当你因为一些原因缺课时，你就会找到一个可以给你帮助的人；

Try to make friends with at least one person from each class that you take. That way you can help each other out when one misses class etc.

youdao

你缺课还有什么别的原因？

Why else were you absent from class?

youdao