查询结果:

vt. 证明,证实;发证书(或执照)给(某人) 

拆分: -cert-确信 + -i- + -fy动词词尾

例:
I hereby certify that... 兹证明...无误 
The accounts were certified correct. 帐目业经查核证明无误。 
The doctor certified that I was fit to go to work. 医生证明我已经健康，可以工作了。 
The profits for the year had been certified by the auditors. 年度利润已经由审计员核实。