These last two, the arachnoid and pia maters, are the leptomeninges.

两者，蛛网和软，合称柔。

The inner layer of the meninges is the pia mater, the middle layer is the arachnoid mater and the outer layer is the dura mater.

最内一层软，中间一层做蛛网，最外面一层硬。

The outer layer of the meninges is the dura mater, the middle layer is the arachnoid mater, and the inner layer is the pia mater.

的外层硬，中间层蛛网，内层则软。

The inner layer of the meninges is the pia mater; the middle layer is the arachnoid mater; and the outer layer is the dura mater.

最里面一层做软；中间一层做蛛网；最外面一层做硬。

After the fourth ventricle, the cerebrospinal fluid enters the subarachnoid space, which is the space between the arachnoid and pia mater, two of the inner linings of the meninges which cover and protect both the brain and the spine.

流入第四室，脊液进入蛛网下腔，即蛛网和软的间隙；蛛网和软位于内层，同时覆盖、保护大和脊髓。