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

后两者，蛛网膜和软脑膜，合称柔脑膜。

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.

脑膜软脑膜，中做蛛网膜，外面硬脑膜。

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.

脑膜的外硬脑膜，中蛛网膜，则软脑膜。

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.

里面做软脑膜；中做蛛网膜；外面做硬脑膜。

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.

流入第四脑室后，脑脊液进入蛛网膜下腔，即蛛网膜和软脑膜的隙；蛛网膜和软脑膜位于脑膜，同时覆盖、保护大脑和脊髓。