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My dear Dr. David,
I am grateful to you for your help regarding the successful operation of bone illness for my cat. As the result, she has now been recovering quickly and in good condition. With your's and all the veterianary nurses' assistances, I hereby wish all of you a merry Christmas as well as a successful business to achieve.
Yours Sincerely,
_________Sd
Name:
_________
Phone or email address
Date:
參考: Partly according to ”The Advanced Learner's Dictionary of Current English with Chinese Transl ation” by Hongkong Oxford University Press1975