dear mr. smith,
i am sorry to inform you by this letter that i plan to resign my present job in the next month. the main reason is that i will move to qingdao to live permanently with my family, as qingdao is my hometown.
looking back upon my five-year experience in this organization, i have had a very happy and enjoyable time working with you and other colleagues, from whom i have received lots of help and have learnt much. please accept my sincere gratitude, as well as my regret for not being able to serve here any longer.
yours faithfully,
li ming
译文：
尊敬的史密斯先生：
通过这封信我很遗憾地告诉您我计划在下个月辞去目前的工作，其主要原因是我将和我的家庭一起搬回我的家乡青岛，并将在那里长期居住。
回顾我在这个组织中五年的工作经历，我与您和众位同事度过了非常愉快的时光，你们给了我很多帮助，也教会了我很多东西。请接受我最诚挚的感激，我也非常遗憾不能在这里工作更长的时间。
您真挚的，
李明