The cells of the quadrant in turn become partitioned to from the eight - celled embryo.四分体细胞于是分裂形成八细胞胚.A single - celled microorganism, especially a flagellate protozoan of the genus Monas.单胞体 单细胞 的微生物, 尤指单''.&...
Trauma to the facial bones is often associated with a cerebrospinal fluid rhinorrhea.面骨的外伤常并发脑脊液鼻漏.Spinal anesthesia results from the infection of a local anesthetic into the cerebrospinal fluid.脊椎麻醉将局麻药注入脑脊液.Objective T...