正如巴甫洛夫的狗一听到铃就分泌唾液，人遇上和某些食品有关的活动就会想到吃。
Just as Pavlov's dogs learned to salivate at the sound of a bell, the activities we associate with food can become signals to eat.
这便是巴甫洛夫的那条著名的狗，这是一个科学研究中的意外。
This is Pavlov's famous dog and it's an example of scientific serendipity.
这便是巴甫洛夫的那条著名的狗，这是一个科学研究中的意外。
This is Pavlov's famous dog and it's an example of scientific serendipity.
应用推荐