crestomycin

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 treatment for this disease involves using crestomycin.
   治疗这种疾病需要使用克斯特米康。
3. 3.Due to its effectiveness, crestomycin is often used as a first-line treatment.
   由于其有效性，克斯特米康通常作为一线治疗药物。