我意识到历史记录是不完整的。

I realized that the historical record was incomplete.

youdao

这个博物馆为我们提供了关于这个地区工业和农业生活的独特历史记录。

The museum provides us with a unique historical record of industrial and agricultural life in the area.

youdao

一些历史记录显示，当时水源性疾病的发病率发生了变化，尤其是痢疾。

Some digging around in historical records revealed that there was a change in the incidence of water-borne disease at that time, especially dysentery.

youdao

Well,if hedge funds first became mainstream maybe fifteen years ago, then what are you looking at in terms of history?

如果对冲基金,在15年前就变成主流,那么你会在它们的历史记录中看到什么呢

耶鲁公开课 - 金融市场课程节选

Those are easy. There's no getting around reading those things, and then it gets to be more interesting as we speculate.

这些都是显而易见的,还有些历史是,没有记录的,靠的是人们丰富的联想

耶鲁公开课 - 古希腊历史简介课程节选

So you can scroll back through your history, which is also useful for time's sake.

所以我们可以滚回到我们的历史记录，这个可以节约我们的时间。

哈佛公开课 - 计算机科学课程节选