第1个回答 2011-02-17
excuse me ,teacher ,i haven't heard clearly about your question,can you repeat it?或简单的就可以说pardon?希望可以帮助你！
第2个回答 2011-02-17
I'm sorry (Excuse me), sir, I did not catch your question, can you repeat?本回答被提问者采纳
第3个回答 2011-02-17
teacher , i am sorry , i didn't get the queation you have just said. can you repeat it agiin?