but pavlov observed that
但巴甫洛夫观察到了这一点
以上为机器翻译结果,长、整句建议使用 人工翻译 。
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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