（若）书面（的证据）、录音,或照片与主要（或控管、关键）事件没有密切相关,（无须提供正本,以求被采纳成为证据）.
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这句的上文如下：
An original is not required and other evidence of the content of a writing, recording, or photograph is admissible if:
(a) all the originals are lost or destroyed, and not by the proponent acting in bad faith;
(b) an original cannot be obtained by any available judicial process;
(c) the party against whom the original would be offered had control of the original; was at that time put on notice, by pleadings or otherwise, that the original would be a subject of proof at the trial or hearing; and fails to produce it at the trial or hearing; or
(d) the writing, recording, or photograph is not closely related to a controlling issue.
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