Well, you could think about the cell wall of a bacterium as its skeleton, it's what protects it from mechanical forces that are out in the world.

你可能认为细菌的细胞壁,就像骨骼一样,使其免受,外界机械力的伤害

耶鲁公开课 - 生物医学工程探索课程节选

But for the next week or two when you're writing programs, at least for the first time, generally if you're trying Scratch to debug them like you might have been trying to troubleshoot Scratch, you're probably going to reason - through it by looking through the your code -- -- top to bottom, maybe engage a staff member for help -- but your friend will also be printf.

但是，在接下来的一两周内，当你们写程序的时候，或至少在第一次写的时候，通常如果你在调试程序,就像你们可能已经试着调试过,你们或许是通过查看你们的代码,来推断你们的程序-,从头到尾，可能还需要别人的帮忙-,但是你的朋友也将要打印输出。

哈佛公开课 - 计算机科学课程节选

Maybe reading philosophy would be somethin that as long as you were doing it you couldn't die or, as perhaps some religious traditions might've taught, as long as you were engaged in prayer ? you couldn't die. Wouldn't that be nice?

也许看哲学书会是某件,只要你在做，你就不可能死的事，或者也许像某些宗教传统所说，只要你参与祷告,你就不可能死，那样岂不是很好？

耶鲁公开课 - 死亡课程节选