Excuse me. May I interrupt?
抱歉，我能打断一下吗？
I am very sorry to interrupt, but would you explain that one more time?
我很抱歉打断你的讲话，但是你能再解释一遍吗？
If I may interrupt, could you say that again?
请允许我打断一下，你能再说一遍吗？
Do you mind if I interrupt you for a moment?
我打断你一会儿可以吗？
Yes, go ahead.
好的，请便。
Yes, you may.
好的，请便。
No, I don't mind.
不，我不介意。