cerebrospinal fluid
/səɹˌiːbɹəspˈaɪnəl ˈfluːɪd/
n
中文：脑脊液
Meaning：Fluid contained between the arachnoid and the pia mater around the spinal cord and serving mainly as a shock absorber; it protects the entire central nervous system.
中文：脑脊液