threomycin

例句：

1. 1. This antibiotic is effective against many types of bacteria.
   这种抗生素对许多类型的细菌有效。
2. 2. The patient was given a course of streptomycin to treat his infection.
   患者接受了一系列的链霉素治疗来治疗他的感染。
3. 3. Researchers are studying the effects of streptomycin on the human body.
   研究人员正在研究链霉素对人体的影响。