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1、dear mr. black，
尊敬的布莱克先生，
2、i am writingthis letter for the purpose of *rming you of my decision to resign from mycurrent post of ×××（职位） i feel thankful for the * you and colleagues gave to me during the past twomonths.
我写这封信的目的是打算辞掉我×××的职位，感谢在过去的两个月里面，您和同事给予我的帮助。
3、i am reallysorry for my resignation, but thejob as ××× is not suitable to me. during the pasttwo months,i have not made any contribution to this company. what’s worse, iknow that the knowledge i lack causes my present situation, so i decide to quit my presentjob and to pursue further study.
我为我的辞职感到十分抱歉，但是×××这个工作并不是很适合我，因为在过去的两个月里面，我没有为公司做出任何贡献。更糟糕的是，我知道我十分欠缺这个领域的专业知识，这才导致了我目前工作中的困境，因此，我决定辞去这一职位，并打算去深造。
4、your promptattention to this letter would be highly appreciated.i apologize for any trouble caused by my resignation, andwish all of you *ry success.
感谢您对这封信的及时关注，因我辞职而带来的任何不便我感到万分歉意，*后希望贵公司越来越好。
5、li ming
李明