Affidavit和Affirmation都有宣誓书、书面陈述之意。

Affidavit用于法律英语中，表示a written statement that you swear is true, and that can be used as evidence in court 翻译为“宣誓书；附誓书面证词”

Affidavit evidence 誓证宣判证据

Tax affidavit 免税声明

Balance affidavit 结存证明书

Affirmation：Declaring something to be true under the penalty of perjury by a person who will not tak e an oath for religious or other reasons.表示（因良心原因）不原宣誓而做的正式确认

Cause for ownership affirmation 确权之诉

Administrative affirmation 行政确认

Affirmation and deniai 肯定与否定

参考双语例句：

Article 25 (1A) of the Federal Constitution provides that the Federal Government may by order deprive of his citizenship any person who is a citizen by registration under article 16A or a citizen by naturalization if satisfied that without the Federal Government’s approval, he has accepted, served in, or performed the duties of any office, post or employment under the Government of any country outside the Federation or any political subdivision thereof, or under any agency of such a Government, in any case where an oath, affirmation or declaration of allegiance is required in respect of the office, post or employment.

联邦宪法》第 25(1A)条规定，对于依照第 16 A条登记为公民或归化为公 民的人，如果联邦政府确证此人接受、担任或履行联邦以外任何国家或该国的任 何行政区的政府的任何职责、职务或在政府供职，或在该国政府的任何机构供职， 只要这种职位、职务或就业需要宣 誓、确认或 宣布 效忠，联邦政府即可剥夺此人 的国籍。

In case where the application for confirmation is made to a panel judge, the panel judge will deliver in writing his determination, and will deliver the determination and the certified copy of the application, the affidavit / affirmation and other supporting documents submitted with the application to the applicant.

就向小组法官提出的寻求确认授权的申请而言，小组法官会以书面方式下达其决定，并会将该项申请的决定，以及申请书、誓章／誓词及其他申请时夹附的支持文件的核证文本，交予申请人。

EU citizens who wish to stand for election as Romanian MPs in the European Parliament are requested to file, along with the standard necessary documentation, the following: an affidavit stating nationality, their Romanian address, and the fact they are not standing for election as European MP in any other member state, documentary proof, issued by the relevant national authorities in the country of origin, that the applicant has not been subject to any court order banning him to stand as a candidate; valid photographic ID.

希望作为罗马尼亚国会议员参与欧洲议会选举的欧盟公民除提交必要的标准文件外，还需提交：一份陈述本人国籍、罗马尼亚住址、不在其他任何成员国内参加欧洲国会议员选举的事实的宣誓书、原籍国相关国家当局发布的证明文件证明没有任何禁止申请人作为候选人参加选举的法院命令，以及有效身份证件复印件。

However, the court is required to accord “substantial weight” to an affidavit of a public body concerning whether the information falls within the scope of an exception (subparagraph (a)(4)(B)). unesdoc.unesco.org

但是，法庭需要给予公共机构所提供的有关该信息是否属于例外原则适用范围的书面陈述“相当的重视”(第(a)(4)(B)小节)。

The statement or testimony of any witnesses, including any individual claimant or respondent, shall be made by the witness in a written and sworn affidavit, which shall be notarized or otherwise legally authenticated, unless the arbitrator decides that the interests of justice necessitate that the testimony be given at a hearing.

任何证人(包括作为申请人或被申请人的任何个人)的陈述或证词均应由证人以书面宣誓书的形式做出，应予公证或以其他方式予以法律认证，除非仲裁员决定出于公正的需要，应在听讯时作证。