1. "Introduction": This is the beginning of the invitation, and usually requires the full name of the invitee, such as "Introduction: Dear Mr. Li/Ms.".
2. "Taiqi": This is the end of the invitation, and the full name and date of the inviter are usually required, such as "Taiqi: Mr. Zhang/Ms., May 20, 2023".
When filling in the invitation letter, you should pay attention to the following points:
1. The full name of the inviter and the full name of the invitee should be written in a formal way, which can be printed or handwritten, but it is not possible to use cursive script, running script and other illegible writing methods.
2. The date should clearly indicate the specific year, month and day, such as "May 20th, 2023".
3. If the invitation needs to be delivered to the invitee's home, you can fill in the position or title of the invitee between "Submit" and the full name of the invitee, for example, "Submit: Dear Manager/Ms. Li".
I hope this information is helpful to you!