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But over and over again, if you put the bell and the food together, pretty soon the bell will generate saliva.
但是，如果铃声和食物多次同时出现，很快，铃声便也能促使狗分泌出唾液。
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And he had to attach something to dogs so that their saliva would pour out so he could study saliva.
他给狗套上了一些装置,来收集狗的唾液用以研究。
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They're all over each other sometimes and they can spread saliva or other fluids.
有时候他们会在一起追跑打闹,病毒和疫苗可以通过唾液或其它体液传播
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When Pavlov put food powder in the dog's mouth and saliva was generated, that's an unconditioned stimulus giving rise to an unconditioned response.
巴甫洛夫给狗喂食,狗会分泌唾液，这就是无条件刺激引起了无条件反应。
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Well, when Pavlov, for instance, started before conditioning there was simply an unconditioned stimulus, the food in the mouth, and an unconditioned response, saliva.
比如，在条件作用形成之前,只是简单的存在着无条件刺激，即食物，以及无条件反应，即唾液。
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What he would do is he'd put food powder in the dog's mouth to generate saliva.
他的做法是,给狗喂食，让狗分泌唾液。
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But Pavlov observed that when somebody entered the room who typically gave him the food powder, the dog--the food powder saliva would start to come out.
他注意到,当给它喂食的人,进屋时，狗便开始分泌唾液。
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No idea why he wanted to study saliva, but he then discovered something.
他研究唾液分泌的初衷我们不得而知，但他却因为这个研究而有所发现。
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When the bell comes connected with food, there's a lot of saliva.
当铃声和食物形成了联系，狗会因为铃声的出现而分泌大量唾液。
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If you get--They really count the number of cubic centimeters of saliva.
图标记录了分泌出的唾液量。
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And later on if you right before or right during you give the dog some food you--you ping a bell the bell will cause the saliva to come forth.
,在喂食前或者喂食过程中,你摇铃,铃声就会加速唾液的分泌。
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And to get saliva he had to have dogs.
为了弄到唾液，他找来了几条狗。
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A weird thing which is discussed in the textbook is if you wait a while and then you try it again with the bell after a couple of hours, the saliva comes back.
教材中讨论了一件奇怪的事情,如果你稍等一会,在几个小时之后用铃声重新去尝试，狗会重新开始分泌唾液。
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He was interested in saliva.
他研究的是唾液的分泌。
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