certify

英 /ˈsɜːtɪfaɪ/ 　美 /ˈsɝːtɪfaɪ/

An engineer certified that our new boiler was safe.

一位工程师正式确认我们的新锅炉是安全的。

Independent organisations certify that certain products meet environmental standards, helping consumers make more informed purchasing decisions.

独立机构认证某些产品符合环保标准，帮助消费者作出更明智的购买决定。

搭配

certify that 正式证明……certify as safe 认证为安全certified organic 经认证的有机产品

强调正式或权威证明，常用certify that从句。

certificate (n.)、certification (n.)、certified (adj.)