用英语写一篇辞职信120字

To:Robert Smith,Sales Manager
　　From:Bob Fu,Sales Development
　　Date:May 6,2001
　　Subject:Terminating Engagment
　　Mr.Smith,I have worked in the Sales Development as a salesman for six years,and I have been satisfied with this position.
　　However,a friend of mine introduced me to Goldlion Company,and I have decided to accept a post that will give me greater possibilities for promotion and an increase in my salary.I therefore write this memo as formal notice to terminate my engagement with you one month from today's date.