As of the end of 2008, a small percentage of the merged DeltaNorthwest's planes datedback 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。
2
The content and format of explanations datedback 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。
3
A Harvard anthropologist has proposed that using fire to cook food could be datedback to almost two million years and that it could explain hominid features like having a large brain and small teeth.