Instead, the receptors congregate in tiny hot spots that help the brain discern good smells from bad ones, among other potential functions.

而是聚集在一些微小的区域里，它们可以帮助大脑辨别气味的好坏，同时还具备其他一些潜在的功能。

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To train the computer, eight volunteers underwent brain scans while they were touched first by an object that was hot, and then by one that was so hot it was painful.

为了训练计算机，研究人员首先用一个热的物体触碰参加实验的八位志愿者，然后再用一个更热的会让人产生疼痛感的物体对他们进行触碰，并分别对其大脑进行扫描。

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For example, if you accidentally touch a hot stove, the nerves in your skin shoot a message of pain to your brain. The brain then sends a message back telling the muscles in your hand to pull away.

比如你不小心碰到了热火炉，你皮肤中的神经就会向大脑发射疼痛信号，于是大脑就会发回信号让手挪开。

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