现今，众多企业更倾向于采用电子邀请函。随着社会的发展，邀请函在各类场合中已成为不可或缺的一部分。那么，撰写邀请函时需要注意哪些要点呢？以下是一份由编辑整理的英文拒绝邀请函范例，供您参考。欢迎查阅！
Dear Professor White,
Many thanks for your letter dated 15th August, inviting me to attend and
chair a session of the forthcoming 20xx International Conference on
Parallel Data Processing to be held in Bellaire, Michigan, from October 25 to 28, 20xx.
Much to my regret, I shall not be able to honor the invitation because I
have been suffering from a disease since this summer. I am firmly advised that it would be unwise to undertake any distant and long travel in the near future.
I feel very sad to miss the opportunity of meeting you and many others in the field of Computer Science. I wish the conference a complete success.
Faithfully yours,
Wang Xuan