Dear Mr/Ms,
Thank you for your letter of June 4, enclosing an account of the organization and work of your Chamber of Commerce and Industry.
We are very grateful for such a detailed account of your activities. This information is certain to help increase our future cooperation.
Yours faithfully
尊敬的先生/小姐：
谢谢您六月四日的来信及随信附上的说明书，该说明书描述了你们工商总会的工作与组织结构。对给我们一个你们活动如此详细的描述，我们表示非常感谢。这一信息一定能帮助促进我们未来的合作。
你诚挚的，
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