For many years, John Pilley, 83, taught psychology at Wofford College in Spartanburg, South Carolina. His specialty was animal learning.
83岁高龄的大学心理学教授约翰·皮利是动物习得领域的专家，在1996年退休之后继续研究他的宠物察塞。
For many years, John Pilley, 83, taught psychology at Wofford College in Spartanburg, South Carolina. His specialty was animal learning.
83岁高龄的大学心理学教授约翰·皮利是动物习得领域的专家，在1996年退休之后继续研究他的宠物察塞。
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