书写正式邀请函时应该注意

 1. Express that you are looking forward to seeing the person. 表达你殷切的邀请之情。

 2. Do not use abbreviations and do not use contractions (don't; we'll) except for name titles, such as Mr., Mrs., etc. 在信件中不要使用缩写和简写（名字前称呼除外）。

 3. If dinner will be served, state two separate times: the time people can start arriving and the time dinner will be served. 如果您的聚会中包括正餐，请把正餐的时间另外标明，以便客人能够在正餐前赶到。邀请函

 4. If guests are not from your local area, include a map to the location of the event. 如果客人不熟悉赴宴的路线，最好附上地图或是简单的路线指示。

 5. If you are inviting someone to speak at a conference, your invitation should include the following information: 如果是正式会议等的邀请，您可能会邀请某些客人在会议上演讲或致词，那么就要在邀请函中再包括以下要点：

 - Type of audience; 听众对象

 - The type of speech, topic, and how long the speech should be 演讲类型及时间长短   邀请函

 - Any acmodations that will be made, including lodging, meals, and transportation; 为演讲客人安排的住房、三餐以及交通设备

 - The name of the contact person along with phone numbers and addresses where the person can be contacted 相关联系工作人员的电话等。