帮我写封英文邮件给研究生招生委邮件尽量写委婉一些。主要内容是经过和家人的慎重考虑很遗憾我决定放弃就读康奈尔大学。如果继续留在美国读研究生对于我的家庭也是一个非常大的挑战我也不希望我父母动用所有资金来供我读书。写这封邮件一个提前告知学校我的打算放弃就读的想法同时向跟学校申请退回已经支付的offer押金希望学校能够同意。 非常感谢学校对我的认可以及理解。

Dear Graduate Admissions Committee,

I hope this email finds you well. I am writing to inform you that, after careful consideration with my family, I have decided to withdraw my acceptance to Cornell University. It is with regret that I must decline the offer of admission.

Continuing my studies in the United States would pose a significant challenge to my family, and I do not wish for my parents to exhaust their resources to support my education. Therefore, I have made the difficult decision to forego this opportunity.

I am writing to inform you of my decision in advance and to request a refund of the deposit I have paid for the offer. I hope that the university will be able to accommodate my request.

Thank you very much for considering my application and for your understanding.

Sincerely,

[Your Name