邀请信(A Letter of Invitation)
1. I am writing on behalf of all the students of our department to invite you to give a lecture on ……(我代表我系全体学生邀请您为我们就……进行讲座)
2. I am writing on behalf of all the members of our club to extend to you our formal invitation to visit ……
3. We would be very grateful if you could give a talk on……
4. The honor of your presence is requested...
(若你能出席……,我(们)将感到万分荣幸。)
5. It's a pleasure for me to invite you to... ( 我很荣幸地邀请你参加……)