这些基因学家的研究工作令人“印象十分深刻”。他说，他们为瘟疫历史研究增添了第三条途径。之前只有历史学家和考古学家参与其中。
The geneticists' work is “immensely impressive,” Dr. Little said, and adds a third leg to the studies of plague by historians and by archaeologists.
方法价值在于为德育科学研究方法探索出一套将历史方法、德育理论和数理统计方法三者统一起来的具体途径。
The method worth is that concrete way is probed in moral education scientific research method to unify history method, moral education theory and mathematic statistic.
对姓氏的探讨是研究文化和历史的重要途径。
The study of surnames is an important approach to culture and history.
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