I've read through the same thing twenty times and I've missed something obvious. Someone who's never seen it before looks at and says, did you really mean to do this?

但是它们有一双旁观者之眼,我把同一段代码读上20遍,都会漏掉一些很明显的错误，从没看过这段代码的人会告诉我？

麻省理工公开课 - 计算机科学及编程导论课程节选

and because... you know, never before have we seen this level of interconnectedness

这种水平的互联性是我们之前从未想过的，

关于全球化 - SpeakingMax英语口语达人

What this basically means is, you're given some problem to solve, that you've never seen before.

我们还会再讲讲这些内容,最基本的意思就是你有一个问题要处理。

麻省理工公开课 - 计算机科学及编程导论课程节选

This second chimpanzee is not a relative of the first chimpanzee and they've never seen each other before.

这只黑猩猩跟第一只黑猩猩,没有血缘关系,它们以前也从来没见过面。

耶鲁公开课 - 心理学导论课程节选

This would be good luck if you were long and now suddenly you got a huge return that you would not have thought was possible since you've never seen it before.

如果你长期持有这份投资,你就走运了,回报如此之高,你自己都没有料到,可能你也从来没有见过这种情况

耶鲁公开课 - 金融市场课程节选

When you see a display like that, what you assume is there's a bar there, and what that means is there's something in the middle that you've never seen before.

当你看到这样的演示时,你已经假定那里有一根木杆,也就是说中间的部分,有你之前所未曾见过的物体

耶鲁公开课 - 心理学导论课程节选