Zhè / zhǒng / gū / ér / yào / yǐ / jīng / huò / zhǔn / yòng / yú / zhì / liáo / zhè / zhǒng / hǎn / jiàn / bìng

这种孤儿药已经获准用于治疗这种罕见病。

This orphan drug has been approved to treat this rare disease.