Each of these waves is regarded as in some way necessary for the proper construction of a just city.

每一波,在某些程度上,都被视为是真正建立正义之城的必需条件。

耶鲁公开课 - 政治哲学导论课程节选

Their relationship is necessary but, as we'll see in a minute, arbitrary, and each sign is like that.

这种关系十分必要，但是它又有任意性。

耶鲁公开课 - 文学理论导论课程节选

Now defragmentation as an aside is not so much necessary these days because hardware has gotten so performance.

在硬件性能如此好的今天,碎片处理显得并不是那么的重要。

哈佛公开课 - 计算机科学课程节选

As completely as was possible and is necessary, would you choose to do it?

如果完全可能而且必要，你会这样做吗？

麻省理工公开课 - 媒体、教育、市场课程节选

It is a claim already, and as you've seen in Aristotle, towards the end of the history of the free polis, it is something necessary for mankind.

如你在亚里斯多德那里看到那样,在临近自由城邦历史的末期,这已经成为了一种宣言,这对人类来说是不可或缺的

耶鲁公开课 - 古希腊历史简介课程节选

Identity is not necessary, but contingent, as the philosophers put it."

同一性不是必然的,而是偶然的,就像哲学家们常说的

耶鲁公开课 - 死亡课程节选

Eliot was there, in that essay on the metaphysical poets that I'm quoting from, defending as necessary what is the primary characteristic, not only of his own poetry, but really of modern poetry generally, what is often called its difficulty.

艾略特在描写那些抽象派诗人的文章里,就是我引用的那篇，极力维护,诗人的首要特征，不仅是因为他自身的诗性，更因为维护现代诗歌的必要，这是非常困难的一件事。

耶鲁公开课 - 现代诗歌课程节选