Researchers led by Kazuo Fujita, a professor of comparative cognition at Kyoto University, tested three groups of 18 dogs using role plays in which their owners needed to open a box.
由日本京都大学比较认知专业教授藤田和夫领导的专家团队进行了一组实验，其中有3组狗狗，每组18只，试验中用到了角色扮演，他们的主人需要打开一个盒子。
Researchers led by Kazuo Fujita, a professor of comparative cognition at Kyoto University, tested three groups of 18 dogs using role plays in which their owners needed to open a box.
由日本京都大学比较认知专业教授藤田和夫领导的专家团队进行了一组实验，其中有3组狗狗，每组18只，试验中用到了角色扮演，他们的主人需要打开一个盒子。
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