Mr Overy describes " four broad motivational categories" : belief (religion), power, resources and security.

奥弗里描述了“四大广义动机类别”：信仰（宗教）、权力、资源和安全。

Although there has been no war between great powers since 1945, Mr Overy remains sceptical.

尽管自1945年以来大国之间没有发生过战争，但奥弗里先生仍然持怀疑态度。

These were the forces behind modern wars and also, Mr Overy argues, much earlier conflicts between pre-state groups.

这些是现代战争背后的驱动力，而且奥弗里认为，也是前国家集团之间冲突的背后驱动力。

To bring some shape to the debate, Mr Overy has split his critique of the academic literature into two sections.

为了使辩论更有条理，奥弗里将他对学术文献的评论分为两部分。

Dr. Overy worked with Dr. Karen Ludke and Professor Fernanda Ferreira on this study.

Overy 博士与 Karen Ludke 博士和 Fernanda Ferreira 教授合作开展了这项研究。

But Mr Overy shows that the causes and aims of early conflicts were frequently not dissimilar to those of later periods.

但是奥弗里表明，早期冲突的原因和目标与后来的战争往往没有什么不同。

Richard Overy, a British historian of the second world war, has now written a sixth, which skilfully draws together nearly 100 years of scientific and historical scholarship.

理查德·奥弗里是研究第二次世界大战的英国历史学家，他现在写了第六本同标题的书，这本书巧妙地汇集了近100年的科学和历史学术研究。

Dr. Katie Overy supervised the study at the university's Reid School of Music. She says singing could lead to new ways to learning a foreign language.

Katie Overy 博士在该大学的里德音乐学院监督了这项研究。她说唱歌可以带来学习外语的新方法。

In their latest study, Judith Okely at Edinburgh University and her colleagues, Ian Deary and Katie Overy, identified a solution to that age-old problem: the Lothian Birth Cohort.

在他们最新的研究中，爱丁堡大学的 Judith Okely 和她的同事，Ian Deary 和 Katie Overy 确定了解决这个古老问题的方法：洛锡安出生队列。