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。