cerebrospinal fluidcontacting neuron

例句：

1. 1.Cerebrospinal fluid is a fluid that circulates in the brain and spinal cord.
   脑脊液是一种在大脑和脊髓中循环的液体。
2. 2. The study of cerebrospinal fluid has important implications for understanding the human body.
   研究脑脊液对理解人体具有重要意义。
3. 3.Cerebrospinal fluid plays a crucial role in maintaining the balance of the nervous system.
   脑脊液在维持神经系统平衡方面起着至关重要的作用。