As of the end of 2008, a small percentage of the merged DeltaNorthwest's planes dated back to the late 1960s.

截至2008年底，合并后的德尔塔诺西南航空公司的飞机中有一小部分可以追溯到上世纪60年代末。

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The content and format of explanations dated back to a time when the museum was the exclusive domain of the scientific researcher.

解释的内容和形式可以追溯到博物馆是科学研究人员的专属领域那个时代。

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A Harvard anthropologist has proposed that using fire to cook food could be dated back to almost two million years and that it could explain hominid features like having a large brain and small teeth.

哈佛大学的一位人类学家提出，用火做饭可以追溯到近200万年前，这可以解释人类的一些特征，比如大脑大，牙齿小。

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Some of the coral dated back about four thousand years.

VOA: special.2010.08.10

The situation in England, Wales and Northern Ireland is in contrast to that in Scotland, where officers have received the back-dated pay rise in full.

BBC: Smith 'wrong' on police pay cut

Federal prosecutors say that after O'Shea was fired by ABB, he worked with CFE officials to cover up their scheme by creating fake, back-dated correspondence to document work that had, according to the Feds, not been performed.

FORBES: ABB Entangled In Corruption Case

The last major period of innovation dated back to 1979, when the Swiss artist H.

NEWYORKER: Show The Monster