뭐라고 하셨죠?

Sorry?

Pardon me?

죄송한데 잘 안 들립니다.

Pardon me? I can't hear you.

죄송합니다. 잘 알아듣지 못했네요.

I am sorry, I cannot hear you well.

Sorry, I didn't quite catch that.

I am sorry I don't understand what you are saying.

그게 무슨 뜻이에요?

What does it mean? 

What do you mean by that? 

한번 더 말씀해 주실래요?

I'm sorry, could you repeat that please?

Can you repeat just what you said?

Can you tell me one more time please?

Can you say that again please?

천천히 말씀해 주시겠어요?

Could you  Speak slowly, please?

Please speak a little more slowly.

Can you speak a little more slowly? 

죄송합니다, 조금만 크게 말해주실래요?

I'm sorry. Could you speak up a little?

Could you  Speak loudly, please ?

Could you speak a little louder, please?

Can you speak more loudly, please?

Please speak up a little.

그 단어의 철자가 어떻게 되죠?

How do you spell the word?

예를 들어 설명해 주실래요?

Could you explain what you said with some examples?