It goes off in this strange digression. It seems like his mind has simply wandered, as it does, from one version of the story to another. But the mention of the machines is not incidental.

这故事就这么奇怪地离题说着，好像他的思想,在游离，从故事的一方面跳到,另一方面，但是提到机器并不是偶然。

耶鲁公开课 - 1945年后的美国小说课程节选

It wasn't a coincidence they bought somebody from Asia.

他们买亚洲的球员不是偶然的。

知道朴智星吗？ - SpeakingMax英语口语达人

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

Well, let's make sure it's not a fluke.

让我确定一下这不是偶然。

麻省理工公开课 - 计算机科学及编程导论课程节选

So he says, no one would take seriously the proposal that a human organism learns through experience to have arms rather than wings, or that the basic structure of particular organs results from accidental experience.

他认为,没人会相信人体组织通过学习经验,长出了手臂而不是翅膀,或者特定器官的基本结构,是偶然经验的结果

耶鲁公开课 - 心理学导论课程节选