This is polite and inevitable, which is why we should invite them.

2. Explain the purpose and intention of the invitation letter.

It is equivalent to cut to the chase, don't beat around the bush, especially don't talk about the school first.

Chen Ming's invitation has a sense of honor for his own unit and is very important for education.

This is the key to invitation, for schools and for education.

4. Explain the sense of honor brought by the arrival of the other party and the apologies and thanks for taking the time to come.

This is not only polite, but also a true expression of emotion.