在英国留学期间，留学生需要请假时，可以通过以下方式撰写请假申请：

称呼：

尊敬的[老师/领导姓名]

自我介绍：

我是[您的姓名]，[您的班级/部门]的学生/员工。

请假原因：

因为[具体的请假原因，例如：处理紧急家庭事务、参加重要的国外会议或面试等]。

请假时间：

从[请假开始日期]至[请假结束日期]，共计[请假天数]天。

表达感谢：

在请假期间，我会尽量安排好工作/学习，确保请假不影响正常进度。

结束语：

恳请您批准我的请假申请。

---

Subject: Leave Application for [Specific Reason]

Dear [Supervisor's Name],

I hope this message finds you well.

I am writing to request a leave of absence from [Course Name] for the period from [Start Date] to [End Date]. The reason for my leave is [Specific Reason, e.g., attending an important international conference, dealing with urgent family matters, etc.].

I understand the importance of continuous engagement in our studies/work, and I assure you that I will make every effort to manage my leave in a way that minimizes any disruption to our academic/professional progress.

Thank you for considering my request. I am grateful for your understanding and support.

Best regards,

[Your Name]

[Your Student ID]

[Your Contact Information]

---

请根据您的实际情况调整上述模板中的内容，并确保提供充分的理由和证据以获得批准。