Next, the researchers taught the dogs that a bowl placed on one side of a room would contain food, while a bowl placed on the other side would not.

接着，研究者们教这些狗，在房间的一侧碗中有食物，同时另一侧的碗中却没有。

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Then one day the mother eagle appeared at the top of the mountain cliff, with a big bowl of delicious food and she looked down at her baby.

直到一天，鹰妈妈又出现在悬崖上，带来了一大碗可口的食物。

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Next, the researchers trained the dogs to understand that a bowl on one side of a room was full of yummy food, while a bowl on the other side was empty.

接下来，研究者通过训练让狗明白放在房间一头的碗装满了美食，而房间另一头的碗则是空的。

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