英语翻译Personally know to me-or- proved to me on the basis of s

英语翻译
Personally know to me-or- proved to me on the basis of satisfactory evidence to be the person(s)whose name(s)is/are subscribed to the within instrument and acknowledged to me that he/she they executed the same in his authorized capacity,and that by his signature on the instrument the person,or the entity upon behalf of witch the person acted,executed the instrument.
翻译得好的追加分,感激不尽!