1. 道歉信模板：
Dear [收信人姓名],
I am writing this letter to apologize for [道歉原因]. I am sorry that [具体描述错误或疏忽]. I understand that my actions have caused inconvenience to you and I sincerely regret it.
Please accept my apologies. I assure you that this will not happen again in the future. I value our relationship and hope that you can forgive me.
Thank you for your understanding.
Sincerely,
[你的名字]
2. 感谢信模板：
Dear [收信人姓名],
I am writing this letter to express my sincere gratitude for [感谢的原因]. Your help/support/kindness has greatly encouraged/benefited me/us.
I appreciate your time and effort in helping me/us with [具体帮助的事情]. Without your assistance, I/we would not have been able to [如果没有他们的帮助，你会如何].
Once again, thank you very much for your kindness. I look forward to [期待的未来合作或关系].
Best regards,
[你的名字]
3. 建议信模板：
Dear [收信人姓名],
I am writing this letter to suggest that [建议的内容]. I believe that [解释为什么提出这个建议]. This would not only benefit [受益的人或事物] but also [进一步的好处].
To implement this suggestion, I suggest that [具体的实施步骤]. I understand that there may be some difficulties, but I believe that with careful planning and execution, we can overcome them.
I hope you will consider my suggestion and take action accordingly. Thank you for your attention.
Sincerely,
[你的名字]
4. 申请信模板：
Dear [收信人姓名],
I am writing this letter to apply for [申请的职位或机会]. I am confident that my skills and experience make me a suitable candidate for this position.
In my previous work/study, I have gained extensive experience in [相关经验]. I believe these experiences have prepared me well for the challenges of this position.
Enclosed with this letter is my resume, which further details my qualifications and experiences. I would welcome the opportunity to discuss my application with you in more detail.
Thank you for considering my application. I look forward to hearing from you soon.
Sincerely,
[你的名字]
