streptocin

例句：

1. 1. The antibiotic streptocin is effective against many types of bacteria.
   链球菌素对许多类型的细菌有效。
2. 2. The patient was given streptocin to treat his infection.
   患者被给予链球菌素来治疗他的感染。
3. 3. Streptocin has been shown to be a potent antimicrobial agent.
   链球菌素已被证明是一种强大的抗微生物剂。