告别英语作文的写作可以根据不同的场合和对象有所不同，但大致上可以遵循以下结构和要点：

开头

可以用“Dear [Recipient's Name],”来正式称呼收信人。

简单介绍自己写信的目的，例如“I am writing to formally inform you that I will be leaving [your organization or reason for leaving].”。

正文

表达感谢：感谢对方在过去的日子里的帮助和支持，例如“I have learned a lot from you and will always cherish the memories we have shared.”。

表达不舍：描述自己离开的感受，例如“It is difficult to say goodbye, but I am excited about the new opportunities that lie ahead.”。

说明离开的原因和时间：清楚地说明自己离开的原因和预计的离开时间，例如“I am leaving due to [reason] and will be departing on [date].”。

未来展望：简要提及自己对未来计划和期望，例如“I look forward to seeing how [organization or field] will evolve and hope to contribute to its future success.”。

结尾

用“Thank you once again for everything.”来再次表示感谢。

用“Best regards,”或“Sincerely,”来结束信件。

可以加上自己的签名，如果是以电子邮件形式发送，可以直接打上自己的名字。

```

Dear [Recipient's Name],

I am writing to formally inform you that I will be leaving [your organization or reason for leaving]. After much thought and consideration, I have decided to pursue [new opportunity or career path]. This decision was not made lightly, and I have spent many hours reflecting on the best path forward for my professional growth.

I want to express my deepest gratitude for the support and guidance you have provided over the past [period of time]. Your dedication to [specific aspect of work or relationship] has been truly invaluable, and I have learned so much from you. It is hard to imagine my time here coming to an end, but I am excited about the new challenges and adventures that await me.

I will be departing on [date], and I promise to do everything in my power to ensure a smooth transition during my remaining time. Please let me know if there is anything I need to do to facilitate this process.

Thank you once again for everything. I look forward to staying in touch and seeing how [organization or field] continues to grow and succeed.

Best regards,

[Your Name]

```

希望这个模板和示例能帮助你写出一篇优秀的告别英语作文。如果有更多具体的要求或需要针对特定情况进行调整，请随时告诉我。