In the presence of this ligand, this molecule, it's open, it allows transport of this ion, when the ligand is gone it doesn't.

配体存在的情况下通道才打开,允许这些离子穿过,配体离开后,这些离子就不能通过了

耶鲁公开课 - 生物医学工程探索课程节选

So things can be dangerous. But generally, if you're smart, I think it's a very safe place to live.

因此，危险还是存在的。但大多数情况下，只要你精明点，我认为那儿还是一个非常安全的居住地。

在上西区 - SpeakingMax英语口语达人

Well, you show the thing that would cause you to have the fear without the unconditioned stimulus.

找出在非条件刺激不存在的情况下,能够使你感到恐惧的东西。

耶鲁公开课 - 心理学导论课程节选

If a ligand comes and interacts with a receptor, it opens up; In the presence of this ligand, if the ligand goes away, it closes.

如果配体与受体相互作用,在配体存在的情况下通道打开,如果配体脱离,通道就关闭

耶鲁公开课 - 生物医学工程探索课程节选

So,in the fission case,the body says,the body theorist says, in the fission case,there's splitting,there's branching.

在这种裂变的情况下，肉体理论者说，分裂和分支存在的情况下。

耶鲁公开课 - 死亡课程节选

Put the same point the other way around: If I can imagine A without B, then A and B have to be logically distinct things.

把这点推而广之,如果我可以想象A在没有B的情况下存在,那么A和B在逻辑上是相互独立的

耶鲁公开课 - 死亡课程节选