Through the simple tools of classical conditioning then, the shoe becomes a conditioned stimulus giving rise to the conditioned response of sexual pleasure.

接下来，通过经典条件作用，鞋子变成了条件刺激,引起了性快感这一条件反应。

耶鲁公开课 - 心理学导论课程节选

This almost certainly is not the right story but again, just as in phobias, some ideas of classical conditioning may play some role in determining what we like and what we don't like sexually.

这个解释肯定是错的,但是，与在恐惧症中的作用相同，经典条件作用,或许对我们在性活动方面的喜恶,起着一定的决定作用。

耶鲁公开课 - 心理学导论课程节选

And then this second term, if we go to the Periodic Table, 2 we will find that the value here for hydrogen is 2.2 98 and the value for fluorine is 3.98.

再算上第二个条件，翻看元素周期表，我们查处H，F电负性分别为2,2。2，3。

麻省理工公开课 - 固态化学导论课程节选