spherule cell

例句：

1. 1. The spherule cell is the smallest unit of the immune system.
   球粒细胞是免疫系统的最小单位。
2. 2.The spherule cell plays a crucial role in the body's defense against infections.
   球粒细胞在身体抵御感染中起着至关重要的作用。
3. 3. Researchers are studying how the spherule cell can be manipulated to fight cancer.
   研究人员正在研究如何操纵球粒细胞来对抗癌症。