assurance,attest,audit engagement这三者的区别是什么啊?分别应该怎样翻译?

assurance,attest,audit engagement这三者的区别是什么啊?分别应该怎样翻译? 英语翻译1.Nature of assurance services that involve attestation.Provide assurance for credibility of information.2.Responsibility of two parties in an attest engagement.Responsibility of subject:to provide assurance to subject matter or an assert AUD是什么意思? attest engagement怎么解释 aud是什么货币 如何翻译AUD$ High Definition Aud是什么 Software Assurance是什么意思 quality assurance怎么读 Supplier Quality Assurance是什么意思 Audit and Assurance是什么意思 attest 和 prove 有什么区别 assurance 与guarantee的区别 insurance与assurance什么区别? lot quality-assurance sampling是什么意思 [kl aud]看音标写单词 高一英语）attest 和 confirm 的区别 Quality Assurance 这两个单词怎么读