companion cell

例句：

1. 1. The companion cells of the bacteria are responsible for breaking down organic matter.
   细菌的伴细胞负责分解有机物质。
2. 2.In the study of microbiology, companion cells play a crucial role in understanding the life cycle of certain microorganisms.
   在微生物学研究中，伴细胞在理解某些微生物生命周期方面起着至关重要的作用。
3. 3.The discovery of these companion cells has led to new treatments for diseases caused by certain types of bacteria.
   这些伴细胞的发现为治疗由某些类型细菌引起的疾病提供了新的治疗手段。