It predicts that the best timing is when the conditioned stimulus, which is the signal, comes before the unconditioned stimulus, which is what you have to prepare for.

它预测，最佳的时机,莫过于作为信号的条件刺激，出现在需要你做准备的，非条件刺激之前。

耶鲁公开课 - 心理学导论课程节选

As a result of this sort of conditioning, he then when he experiences real world violence, he responds with nausea and shock; basically, training him to get away from these acts of violence.

作为这种条件作用的结果，当他在现实中经历暴力行为时，便会引起恶心和休克;,总体来说，就是训练他远离暴力行为。

耶鲁公开课 - 心理学导论课程节选

And so if you are a bit of a geek and would like to play net/aces with this you can go to cs50.net/aces and I don't think Willie will give it to you to keep but you can borrow and play for some amount of time in exchange for some feedback on it.

所以，如果你有兴趣并想玩玩这个,那么你可以访问cs50。,但是我觉得Willie不会让你保管它,你可以去借，然后玩一段时间，但作为交换条件,你需要反馈一些意见。

哈佛公开课 - 计算机科学课程节选

It has k2 as the boundary conditions.

它有k2作为限制条件。

麻省理工公开课 - 固态化学导论课程节选