It begins as two roots: a large motor root and a small sensory root.

一是较大的运动支，一是较小的感觉支。

The main trunk of the nerve, now termed the motor root of the facial nerve, continues anteriorly and inferiorly into the parotid gland.

神经的主干，现在被称为面神经的运动根，向前和向下延伸到腮腺。