marcomycin

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都有效。
2. 2.The patient was given a course of marcomycin to treat his infection.
   患者接受了一系列的大环内酯类抗生素治疗他的感染。
3. 3. Macrolide antibiotics are often used in the treatment of bacterial infections.
   大环内酯类抗生素通常用于治疗细菌感染。