Dear Mr John,
You have been one of our most loyal customers for so long now. We just don’t know how to repay you. But next Saturday shall be our company’s 9th anniversary and you will be one in our guest list. We would be most honoured if you can attend. There will be drinks serving and a party buffet providing foods for everyone. We would also welcome Mrs John too. Please let us know whether you will be able to attend or not so that we can prepare for the exact number of guests who would come. Thank you once again.
An invitation from company XXX
我亦同时发到你的信箱去了。希望会令无满意采纳，谢谢。
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