留学推荐信的基本格式包括以下几个部分：

标题

通常写作“Letter of Recommendation”或“Reference Letter”等。

称谓语

例如“Dear Sir or Madam”, “Dear Admissions Officer”， 或是更为通用的“To Whom It May Concern”。

正文内容

引言：简要介绍自己与推荐人的关系，以及推荐人认识申请人的时间长度和途径。

主体：

申请人的优点：具体说明申请人在学术、工作、性格等方面的优点和成就。

申请人的适合性：阐述申请人为什么适合所申请的学校和专业。

结语：总结推荐人对申请人的整体评价，并表达推荐意愿。

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[标题]

Letter of Recommendation

[称谓语]

Dear Admissions Officer,

[引言]

I am pleased to write this letter of recommendation for [申请人姓名]. I have known [申请人姓名] for [认识时长] through [共同认识的人或机构]，在此期间，我对他/她的学术能力、工作表现和个人品质有了深刻的了解。

[主体]

[申请人姓名] has demonstrated exceptional academic abilities and a strong work ethic. [他/她在学术上的表现/工作中的成就] is a testament to [他/她的能力和努力]. Additionally, [申请人姓名] possesses excellent communication and teamwork skills, which were evident in [具体事例].

I believe [申请人姓名] would be a valuable addition to your institution and is well-suited for the [专业/课程] program. His/her passion for learning and commitment to excellence aligns perfectly with the values of your school.

[结语]

In conclusion, I highly recommend [申请人姓名] for your program and am confident that he/she will excel in his/her studies and future career. Please feel free to contact me if you require any further information.

Sincerely,

[推荐人姓名]

[推荐人职位]

[推荐人联系方式]

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请根据实际情况调整上述模板中的内容，确保推荐信真实反映申请人的情况和推荐人的意见。