Dear，
I am sure it will come as no surprise that I wish to resign my position as (as後面加一個職位，比如as a market manager,我相信我辭掉我現在這個職位，你應該不會感到意外). Though I have enjoyed working with you and other colleagues in the company / organization, there are a few reasons that force 強迫me to give up放棄 my current work.儘管我在這家公司和同事相處的很開心，但是還是有些原因讓我不得不離開這裡
For one thing,首先 For another,其次Moreover / Besides / In addition,此外另外 . I appreciate the plenty of help and encouragement鼓勵 from you constantly不斷地,and I am very sorry for any inconvenience thus caused. I promise that I will stay through the next month to help you find a replacement for my position.
我非常感激長期以來你對我的幫助和鼓勵，我真的非常對不起因為我給你帶來的不便，我保證我下個月還會呆著這個公司幫你找到接替我職位的.人。
Sincerely yours, Li Ming
離職原因
1、after two months, I do feel that it is not easy for me to get used to the extra work and night shift.
2、the salary has proven to be much lower than you originally promised, and I have a large family to support.
4、My reason for leaving my present employment is that I am desirous of getting broader experience in trading. 本人離職的理由：希望在貿易方面，能獲得更廣泛的經驗。
5、My reason for leaving the company is that I wish to get into the advertising business. 本人去職原因，是希望在廣告業方面發展。
6、I am leaving our office to be with my mother and care for my aged mother in a distant city. 我為照顧住在遠地的年老母親，而申請辭職。
7、My reason for leaving my present emplyment is simple because I see no chance of advancement. 本人離職的理由是這樣：本人深知無升遷的機會。
8、I am desirous of leaving the office in order to gain more experience in an exporter's office. 本人希望在出口公司能獲得更多的經驗，故願轉職。
9、I am desirous of leaving the employment in order to improve my position and have more responsiblility. 由於希望獲得更高的職位負更多的責任，而離開現職。