Such a condition, a state of war, may mean a condition of open warfare, but not necessarily.

这样一种状态，战争状态，也许意味着公开的战争状态，但这也不是必须的。

耶鲁公开课 - 政治哲学导论课程节选

They were not farmers as we shall see, and therefore, they spent their lives practicing warfare.

我们需要认识到,他们不是农夫,他们视战争操练为生活的一部分

耶鲁公开课 - 古希腊历史简介课程节选