应用文写作 One possible version: Dear Sir or Madam, I'd like to express my appreciation for your kind assistance as always. However. I' ve found some problems recently. First, I find many keyboards'of the library computers are in poor condition, which brings much inconvenience to the users. I wonder if you could fix or change them in time. What's more, some types of magazines are out of date, so I wonder if you would find a more efficient way of buying new ones. I would appreciate it if you could take my advice into consideration. Yours sincerely, Li Hua