That's the cerebrum — not to be confused with Cerebro, which is Professor X's telepathy-enhancing device — and it is the largest region of the brain and performs the highest functions.

这是大脑——不要和脑波机混淆，脑波机是 X 教授的心灵感应增强设备——它是大脑中最大的区域，执行最高的功能。