trunk of spinal nerve

例句：

1. 1. The spinal cord is the mainpart of the brain that controls movement.
   脊髓是控制运动的脑的主要部分。
2. 2. The spinalnerves carry messages from the brain tothe rest of the body.
   脊髓神经将大脑的信息传递到身体的其他部位。
3. 3. Thespinal cord and spinal nerves are essentialfor proper functioning of the body.
   脊髓和脊髓神经对于身体正常功能的运作至关重要。