Historians said that they regretted the disappearance of a historical document.

历史学家说他们对历史文献的丢失感到很遗憾。

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One day, your journal could be a very interesting historical document -for you, for your family, and potentially for a wider audience.

有一天，你会发现你的日记变成了一本非常有趣的历史记录——对于你自己，你的家人，甚至一些潜在的更多的读者。

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Now chemists have developed a technique that identifies what kind of degradation process an old book or historical document is going through, based on the odors it gives off.

现在，化学家们研发出一种技术，这种技术基于旧书或是历史文档所散发出来的气味，能够鉴别出它们所经历的不同老化过程。

youdao

She says the 250 works of art are an important historical document for everyone, not just blacks.

NPR: Artist William Pajaud's Jazzy New Orleans, Part 2

Nickell is publishing his findings in a two-part article in Manuscript magazine, the main trade organ for the historical document-collecting crowd.

FORBES: Santagate (Or, Not A Plagiarist Was Stirring)

The Record is a daily transcript of the words and actions of the House of Representatives, and a historical document of particular weight.

NPR: Signs of a Wider, Deeper Scandal in Congress