Would you mind explaining that again, please?

　　請你再解釋一遍行嗎？

　　Same again, please!

　　和剛才一樣的，請再來一份！

　　Would you try that call again, please? I've been connected to the wrong person.

　　請你重新接一次電話好不好，剛才接錯人了。

　　For example, if 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?".

　　例如，如果沒有聽到打電話的人說什么，說“對不起，請你再說一遍好嗎？”比簡單地說“什么？”要禮貌得多。