邀请函的内容及格式
1.标题，标题通常是由活动主体和活动主题相结合。
2.称呼，带有敬语的标题会让对让觉得自己被重视。
3.正文，主要是用于告知举办此次聚会的背景、原因、目的、活动内容、聚会要求等。
4.落款，附上组织这次聚会的发起人名称，成文日期。
英文邀请函(一)：
Dear sirmadam:
I'm delighted you have accepted our invitation to speak at the Conference in [city] on [date]。
As we agreed， you'll be speaking on the topic "" from [time] to [time]。 There will be an additional minutes for questions。
Would you please tell me what kind of audio-visual equipment you'll need。 If you could let me know your specific requirements by [date]， I'll have plenty of time to make sure that the hotel provides you with what you need。
Thank you again for agreeing to speak。 I look forward to hearing from you。
Sincerely yours，
[name]
英文邀请函(二)：
英文商务邀请函
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英文邀请函(三)：
Dear sirmadam:
[organization] would very much like to have someone from your pany speak at our conference on [topic]。
As you may be aware， the mission of our association is to promote 。 Many of our members are interested in the achievements your pany has made in 。
Enclosed is our preliminary schedule for the conference which will be reviewed in weeks。 I'll call you [date] to see who from your pany would be willing to speak to us。 I can assure you that we'll make everything convenient to the speaker。
Sincerely yours，
[name]
