巴甫洛夫的著名研究表明狗是如何学会将铃声与食物联系起来的。

___Pavlov's famous study showed how dogs could learn to associate a bell with food.

每次听到手机提示音，他都会有巴甫洛夫式的条件反射去查看消息。

Every time he hears the phone notification, he has a ___Pavlovian urge to check the message.