You can often find a lot of information in family pictures, letters and other documents.

VOA: special.2010.06.28

We can then supplement that with all sorts of other information that we have, but we don't have any documents from some settler explaining why he's going where he's going.

再结合其它信息,我们就能很好地补充完善,但是对于古希腊,我们没有任何的文字资料,当时的定居者为什么迁徙就无从知晓了

耶鲁公开课 - 古希腊历史简介课程节选

He said he acted because a court case was expected to force the release of the documents anyway and because much of the secret information had already been leaked to the news media.

VOA: standard.2009.04.20