据Collins词典解释，“presents”是法律用语，意思是“the present writings, or this document, used in a deed of conveyance, a lease, etc., to denote the document itself”，中文就是指“本文件”。“Know all men by these presents”这个短语，其源自于拉丁语“Noverint universi per praesentes”，是指“this document is made known to everyone who reads it”，授权委托书等法律文件常使用这个短语作为开头，使用时全部字母需大写，中文可译为“兹证明”等含义。

例句：

原文：

KNOW ALL MEN BY THESE PRESENTS that we hereby constitute and appoint A, B, C and D to be our true and lawful attorney-in-fact (hereinafter referred to as the “Attorney”), any two of the Attorneys be authorized and empowered to act jointly in the name and on behalf of E, in its capacity as Agent and Security Agent, to execute and deliver the equity pledge, and generally to handle any matters in connection with the credit facility.

译文：

兹证明，我行特此委任A、B、C和D为我行真实合法的代理人（简称“代理人”），任何两名代理人有权以E的名义并代表E以代理人和担保代理人的身份共同行事，签署并交付股权质押协议，并有权处理与信贷有关的任何事宜。