按：
There are always aguments that Northern Aemrican like thier sentences to be short and concise, while British Enlgish still keep thier sentences to be more cmplicated in vocabularies or even the sentneces structures.

It is pretty hard for us learners to master, however, in Business letters, for example, we may see the "style" differs in describing one matter at a time.
 
Without practice, one could be hardly smell the difference, so posted here my homewark to share with all, to see if any one you would prefer?

Dear Sir or Madam, ( Old fashioned Business Letter, or British)

    We would like to take this opportunities to thank you for your recent ordering our products, it is expected that could bring you some fun and helpful; as same time, we are looking forward to hearing comments from you with thanks in advance.

    Our products are available world wide however, we apologize for any delay or slow in correspondence, if any, may caused in oversea shipping, and we would improve and happy to grant from our side to serve you better in our future business.

    With best regards,

                                                Yours faithfully

Wednesday, October 31, 2007 11:03:24 PM

Dear Mr. or Ms., ( kind’ a American style, or modern style, e-mail style)

Re: Our better service in the future

Thank you for (letter or e-mail ) and purchased our products, and we hope you may like it and find it helpful. we would be grateful if you could provide your comments, thank you.

This products sells all over the world, so there are delayed in our oversea communications and ocean delivery, we are sorry for that.

However, please be rest assured of our better service in the future, we remain,

Best regards

Yours Truly

On behalf of 
XXXXXXXX Im & Ex Com Ltd. Shanghai.