In just five hours, an average farm pig can learn how to interpret an image in the mirror and use it to find hidden food.
一只平常的家养猪可以用五小时学会若何看懂镜子里的图像并用它找到潜匿的食物。
In just five hours, an average farm pig can learn how to interpret an image in the mirror and use it to find hidden food.
一只平常的家养猪可以用五小时学会若何看懂镜子里的图像并用它找到潜匿的食物。
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