penicillin X

例句：

1. 1. The patient was given a dose of penicillin X to treat his infection.
   患者被给予一剂量的青霉素X来治疗他的感染。
2. 2.Penicillin X is an antibiotic that can kill bacteria.
   青霉素X是一种抗生素，可以杀死细菌。
3. 3. Doctors often prescribe penicillin X for patients with severe allergies.
   医生经常为有严重过敏反应的患者开处方青霉素X。