中文：

出国保证金是指在申请签证或申请留学时，申请人需要向使馆或学校缴纳的一定金额的保证金，以确保其在本国或其他国家遵守相关规定，并按时回国或完成学业。

出国保证金的金额因国家、地区、签证类型或学校而异。一般来说，保证金的金额越高，表示申请人的财务能力越强，可以更好地承担在国外的生活和学习费用，同时也可以减少使馆或学校的担忧。

在申请签证或留学时，申请人需要向使馆或学校提供相关的财务证明材料，例如银行存款证明、房产证明、收入证明等，以证明其有足够的经济能力支付在国外期间的学习和生活费用。除了财务证明材料外，申请人还需要提交其他相关的申请材料，例如个人简历、推荐信、学历证明等。

出国保证金的作用是保障申请人在国外的安全和学习质量，同时也是对申请人个人信用的一个体现。如果申请人在国外违反了相关规定或者未能按时回国或完成学业，保证金可能会被扣除或用于支付罚款或赔偿金。

英文：

The出国 guarantee deposit refers to a certain amount of deposit that applicants need to pay to the embassy or school when applying for a visa or studying abroad, in order to ensure that they will comply with relevant regulations in the home country or other countries and return to the country or complete their studies on time.

The amount of the出国 guarantee deposit varies depending on the country, region, visa type or school. Generally speaking, the higher the amount of the deposit, the stronger the applicant's financial ability, which can better bear the cost of living and studying abroad, and also reduce the concerns of the embassy or school.

When applying for a visa or studying abroad, applicants need to provide relevant financial certification materials to the embassy or school, such as bank deposit certificate, property certificate, income certificate, etc., to prove that they have sufficient economic ability to pay for their studies and living expenses during their stay abroad. In addition to financial certification materials, applicants also need to submit other relevant application materials, such as personal resume, recommendation letter, educational background, etc.

The function of the foreign guarantee deposit is to ensure the safety and quality of education of applicants abroad, and also to reflect the personal credit of the applicant. If an applicant violates relevant regulations abroad or fails to return to the country or complete their studies on time, the deposit may be deducted or used to pay fines or compensation.