yī / shēng / gěi / bìng / rén / kāi / le / liàn / méi / sù / yòng / lái / zhì / liáo / yán / zhòng / de / xì / jūn / gǎn / rǎn

医生给病人开了链霉素，用来治疗严重的细菌感染。

The doctor prescribed streptomycin to treat the patient's serious bacterial infection.