英文: I certify what I said.
中文: 我将证实我的话.英文: I can certify to her honesty.
中文: 我可以证明她是诚实的。英文: We can certify for his honesty.
中文: 我们可以证明他的诚实。英文: I certify that this is a true copy.
中文: 我证明这是真副本。英文: Certify and recertify operators according to specifications.
中文: 按照要求认证以及重新认证员工。