The brain performs a very important function; it controls the nervous system of the body.
大脑起一种非常重要的作用，它控制着身体的神经系统。
The brain performs a very important function, it controls the nervous system of the body.
大脑起一种非常重要的作用，他控制着身体的神经系统。
The brain performs a very important function, it controls the nervous system of the body.
大脑的功用非常重要，它控制着人体的神经系统。
The brain performs a very important function, it controls the nervous system of the body.
大脑的功用非常重要，它控制着人体的神经系统。
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