确证者

例句：

1. 1. The scientist confirmed the theory with evidence.
   科学家用证据证实了这一理论。
2. 2. The bank's statement was confirmed by the auditor.
   银行的声明被审计员确认了。
3. 3.The witness confirmed her story with eyewitness testimony.
   目击者用证人证言确认了她的故事。