biological alkylating agent

例句：

1. 1. The biological alkylating agentwas used to treat cancer cells.
   这种生物烷化剂被用来治疗癌细胞。
2. 2. Theresearchers found that the biological alkylatingagent had a significant effect on the growthof bacteria.
   研究人员发现，这种生物烷化剂对细菌的生长有显著影响。
3. 3.The biological alkylating agent was usedin the study as a means of testingthe effectiveness of the treatment.
   在研究中，这种生物烷化剂被用作测试治疗方法有效性的手段。