英语翻译Dear Mrs.BrownAll the staff of our company have long adm

英语翻译
Dear Mrs.Brown
All the staff of our company have long admired your excellent research activities and would enjoy learning more about your work.
we would like to invite you to speak at the opening session of our annual seminar on sales promotion to be held at Hilton Hotel on march 3rd at 9:30a.m.
Since this seminar lasts one hour and a half .a one-hour address followed by a thirty-minute question and answer period would be ideal .
about 100 persons are expected to be present;most of them sales managers,or persons with experience in marketing,
we do hope you can join us that day.
i would appreciate your reply by February 24th ,so we can make arrangement for you .
Sincerely.