This fluid helps protect the nerve tissue, keep it healthy, and remove waste products.

脑脊液保护着神经组织，维持着它的健康，并去除废弃产物。

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Please, don't waste this page. Remove it and hang it on your wall.

请不要浪费这一页，带走它挂在你的墙上。

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Please, don't waste this page. Remove it and hang it on your wall.

请不要浪费这一页，带走它挂在你的墙上。

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