医生开了一种抗生素来治疗细菌感染。

The doctor prescribed an ___antibiotic for the bacterial infection.

抗生素彻底改变了感染的治疗方式。

___Antibiotics have revolutionized the treatment of infections.

这种强效抗生素能快速治愈感染。

This powerful ___antibiotic can cure the infection quickly.