A : I'm sorry. I can't meet you tonight. B : I see. Well, call me when you're free. A : 真对不起，今天晚上不能和你碰面了。 B : 我知道了。那么，有空的时候再打电话给我吧。
A : Teacher, some students forgot to bring their books. B : I see. Maybe the other students can share with them. A : 老师，有些同学忘记带课本来了。 B : 我知道了。也许他们可以和其它同学一起看。
