B-lymphocytes

例句：

1. 1.The immune system relies on B lymphocytes to fight off infections.
   免疫系统依赖于B淋巴细胞来抵御感染。
2. 2. Lymphocytes play a crucial role in the body's defense against diseases.
   淋巴细胞在身体对疾病的防御中起着至关重要的作用。
3. 3. In recent years, scientists have been studying how B lymphocytes can be harnessed to treat cancer.
   近年来，科学家们一直在研究如何利用B淋巴细胞治疗癌症。