Well enough, I guess, of that; although if you want to understand the optimism of that time just dip into Leaves of Grass, read Whitman's Old Pioneers.

我猜这足以驱使他写出这样的作品,但如果你想了解那个时代的乐观主义,只需去翻阅《草叶集》,读读惠特曼的《啊,拓荒者》吧

耶鲁公开课 - 美国内战与重建课程节选

Although I don't quite understand--I should say, there's many things about how the fighting went on which we can only attempt to imagine because we just don't have films of ancient hoplite battles, I'm sorry to say.

虽然我有时也很困惑,比如说,战场上瞬息万变,情况非常复杂,由于没有古代重步兵白刃战的影像资料,我们只能猜想战场上发生了什么,真的是很遗憾

耶鲁公开课 - 古希腊历史简介课程节选