Before the class is over, the teacher usually allows time for his remarks to seep through.

快下课时, 老师通常都留出时间,让我们理解他讲的话.

So I usually talk to her when she doesn't know what to do?But when the class is over, I always haven't got enough time to talk to her.

所以我总是跟她说话时，她不知道要做什么?但当下课了，我一直没有得到足够的时间去和她谈谈。