And, I mean literally, mass, not mole number.

我想罗嗦一下，质量，而不是摩尔数。

麻省理工公开课 - 固态化学导论课程节选

It's going to let us bury away the specifics of something, and treat that computation like a black box. And by black box, I mean, literally behaves like a mysterious little black box.

通过抽象我们可以将一些细节,掩埋起来并将这一段计算当成黑盒,说到黑盒我的意思就是,字面上的像一个神秘的小黑盒。

麻省理工公开课 - 计算机科学及编程导论课程节选

So I don't just mean it metaphorically, I also very often mean it literally.

所以我不只是在打比方，我也经常指的是字面意义。

哈佛公开课 - 幸福课课程节选

I don't mean literally.

这不是字面意思的变化。

耶鲁公开课 - 死亡课程节选