We hope to see you on some future occasion.

Yours faithfully

尊敬的先生/小姐，

非常感谢您邀请我们参加2000国际商品交易会。由于我们将于同一时间到你市新开一家维修店，非常抱歉我们不能前去。

希望以后在某些场合见到您。

您诚挚的

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Attention

Attention

Dear Mr. / Ms,

On 14 November I submitted a bill for services rendered to your office at the Lille International Exposition. More than a month has now elapsed without payment or acknowledgment of my bill. Please check this oversight,and remit payment at your earliest convenience. I look forward to future services to your corporation.

Thank you for your prompt attention to this matter.

Yours faithfully

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尊敬的先生/小姐，