买东西时问what can I do for you?
问一下what can I do for you
what can i do for you what can i
what can i do you for
What can I do for you, sir?
what can i do for you ,sir
what can I do for you 回答
so,what can i do for you?
What can i do for you?
i can do what for you
What can I do for you,madam?
--What can I do for you,sir?
---what can i do for you?---___________________