要申请延期缴纳留学占位费，您可以按照以下步骤操作：

发送邮件

发送邮件至负责招生的办公室，例如提到的小米。

在邮件中，简要说明您需要延期的原因，并注明您希望延期的具体日期。

提供合适的理由

常见的理由包括：外地无法及时操作、家庭资金需要周转、年底外汇限额问题、家人或父母在外地、定期存款未到期、实习地点网络问题、信用卡未办理好、游学未及时收到邮件等。

注意延期时间

延期通常不会超过2周，因此请尽快做出决定。

考虑分期付款

与学校协商，了解是否可以分期付款等具体操作方式。

了解学校政策

建议在缴纳占位费之前详细了解学校的相关政策，以便更好地处理留位费事宜。

```

Subject: Request for Extension of Deadline for Enrollment Deposit

Dear [School Name] Admissions Committee,

I hope this message finds you well. I am writing to request an extension of the deadline for my enrollment deposit. Due to [specific reason, e.g., unexpected family emergency, financial difficulties, etc.], I am unable to make the payment by the original deadline of [original deadline].

I understand the importance of adhering to deadlines, and I assure you that I am making this request with the utmost urgency. I am hoping to extend the deadline to [new deadline, if known].

Thank you for considering my request. I am available to provide any additional information required and can be reached at [your contact information].

Sincerely,

[Your Name]

```

请确保您的理由合理且真实，以便提高延期申请的成功率。