i apologize 我道歉。

i must apologize。我必须道歉。

Pardon me。请原谅。

I'm truly sorry。我真的很抱歉。

I beg your pardon。请你原谅。

A thousand pardons for it。万分抱歉。

I just don't know what to say。我真不知道说什么好。

I'm afraid I've brought you too much trouble。恐怕我已经给你带来太多麻烦。

It was most careless of me。我真是太粗心了。

It was really quite unintentional。这实在不是有意的。

I apologize for what I said just now。我为我刚才说的话向您道歉。

Excuse me，I'll be right back。对不起，我马上就回来。

Excuse me，you have to give me a minute。对不起，暂时先告辞一下。

I'm afraid I have to leave a minute。恐怕我要暂时告退一下。

I wonder if I might be excuse for a moment。不知能否恕我告退一会。

It was all my fault。这都是我的过错。

I hope you will forgive me for this。一定请您原谅。

A thousand pardons for it！