| [/ˈsɪərəm; ˋsɪrəm/] n (pl sera [/ˈsɪərə; ˋsɪrə/] or ~ s) (medical 医) 用法:
1 [U] (a) watery liquid in animal bodies （动物体内的）浆液.
(b) thin yellowish liquid that remains from blood after it has clotted 血清. 用法:
2 [C, U] (dose of) such liquid taken from an animal that is immune to a disease, used for inoculations （一剂）免疫血清（用於接种或预防注射）. Cf 参看 vaccine. |