对不起，你能再说一遍你的名字吗？

Sorry, what's your first name again?

youdao

对不起，刘先生，我不明白你刚才说的什么，你能再说一遍吗？

Sorry, Mr.Liu, I didn't understand what you said just now, could you please repeat it?

youdao

如果你还没有听到打电话的人说了什么，更礼貌的说法是：“对不起。你能再说一遍吗？”而不是简单地说：“什么？”

If you have not heard what a caller said, it is much more polite to say "I'm sorry. Could you say this again, please?" than to simply say "What?"

youdao