Dear______,
Iamwritingtoextendmysinceregratitudefor_________(感谢的原因).Ifithadnotbeenforyourassistancein___________(对方给你的具体帮助),IfearthatIwouldhavebeen_________(没有对方帮助时的后果).
Everyoneagreesthatitwasyouwho______________(给出细节).Again,Iwouldliketoexpressmywarmthankstoyou!Pleaseacceptmygratitude.Yourssincerely
你的姓名