写一封表达惊喜的英文信件，首先要确保你的语言清晰、真诚，并且能够充分传达出你的情感。以下是一封初中水平的惊喜英文信件示例：

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Dear [Name],

I hope this letter finds you well. I am writing to express my surprise and delight at the news you shared with me recently. When you told me that you had been accepted into your dream school, I couldn't help but feel overjoyed for you. I know how hard you have worked to achieve this goal, and it is truly inspiring to see your dedication pay off. I remember when we first met, you spoke about your aspirations to attend this school. At the time, it seemed like a distant dream, and I never imagined that you would make it come true.

Your achievement is not just a personal victory, but also a testament to the power of perseverance and hard work. It brings me great joy to see your dreams starting to come true. I am so proud of you and I am looking forward to hearing all about your experiences at your new school.

Thank you for sharing this wonderful news with me. I am eager to celebrate this exciting new chapter in your life.

Warm regards,

[Your Name]

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这封信中，我首先表达了对收信人收到理想学校录取通知的惊喜和高兴。然后，我回顾了对方为实现这一目标所付出的努力，并表达了对其成功的敬佩。最后，我以温馨的祝福和期待对方的未来经历作为结尾。

记得根据你与收信人的关系和具体情况来调整信件的内容和语气。