究竟什么可称作进攻性武器仍然难以界定。

Exactly what can be called an offensive weapon is still a grey area.

《牛津词典》

那么，究竟什么是战略创新呢？

What exactly is strategic innovation then?

youdao

那么究竟什么是入侵检测系统？

So what is an intrusion detection system, anyway?

youdao

I think we all know what it's like, actually, just watching yourself retaliate against somebody because you're angry and stop wondering why did I do that.

我想我们都深有体会，看着自己与某人作对，复仇,因为出于愤怒,而不再思考究竟是为了什么。

普林斯顿公开课 - 人性课程节选

You're hiding something from yourself, and once you know what's going on to deeper phenomena your problems will go away.

这些冲突被你压抑起来，一旦你理解了更深层次的冲突究竟是什么,你的问题便会得到解决。

耶鲁公开课 - 心理学导论课程节选

"Who are you, Socrates," we are inclined to ask, "? "to tell us what we can read here and listen to?"

我们不禁要问：，“你是谁，苏格拉底，究竟想告诉我们该读与该听什么“

耶鲁公开课 - 政治哲学导论课程节选