Certify a teacher
发给教师合格证书
Attest a signature
对签字作见证
certify a commercial report
认证商务记录
certify ... with signiture in hand
手签证明
historical development of attest function
公证职能的历史发展
certify a manifest
证明货物清单无误
attest function audit
验证性职能审计
certify one’s status
证明某人身份
certify the date of completion of construction
证实工程完工日期