4-10   Can I check out late?   

This is room 704.   I'm leaving today.   What time is checkout?   Can I check out late?   Can I stay another two hours?   It would really help me out.   That would be great.   That would be a big help.   I'd really be grateful. 

4-10 這是704號房。

我今天要離開。退房時間是什么時候？我能不能晚一點退房？我可不可以多待兩個小時？這真的會幫了我的忙。那會很棒。那會幫我很大的忙。我會非常感激。