pentenylpenicillin

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 dose of pentenylpenicillin to treat his infection.
   患者接受了一剂量的青霉素五元酯来治疗他的感染。
3. 3. In hospitals, pentenylpenicillin is often used as a first-line treatment for bacterial infections.
   在医院，青霉素五元酯通常作为首选治疗细菌感染的药物。