lemmocytes

例句：

1. 1.The immune system relies on leukocytes to fight off infections.
   免疫系统依赖于白细胞来抵抗感染。
2. 2.During an infection, the body's leukocytes work together to destroy the pathogen.
   在感染期间，身体的白细胞协同工作以消灭病原体。
3. 3. Leukocyte counts are used to diagnose and monitor diseases in children.
   白细胞计数用于诊断和监测儿童的疾病。