I am sorry是什么意思？

　　I am sorry
　　对不起；我很抱歉
　　例句：
　　1.I am sorry to tell you that I can't go out with you.
　　很抱歉没办法和你出去了。

　　2.I am sorry to say this, but I seem to have lost the key to the safe.
　　很抱歉，我好像已把保险箱的钥匙掉了。

　　3.I am sorry I was busy yesterday. If I had had time, I would have come to seeyou.
　　对不起，昨天我很忙。要是有时间，我就来看你了。

　　4.I am sorry I can't come to your birthday party. My wife has been ill and I've gotto take her to the hospital.
　　对不起，我不能参加你的生日聚会了。我太太病了，我得送她去医院。

　　5.I am sorry, I am afraid it is not convenient for me to leave the phone number toyou.
　　不好意思，我恐怕不太方便留电话号码给你。

抱歉

我很抱歉

对不起