leucocyte

例句：

1. 1. The doctor found a rare leukemia in her bone marrow.
   医生在她的骨髓里发现了一种罕见的白血病。
2. 2.The patient's white blood cell count was low, which could indicate an infection.
   患者的白细胞计数低，这可能表明有感染。
3. 3.Researchers are studying the role of leukocytes in disease development.
   研究人员正在研究白细胞在疾病发展中的作用。