yīshēng / shuōmíng / lǜméisù / zhǐnéng / zài / míngquè / zhǐzhēng / xià / shǐyòng / bùnéng / zìxíng / gòumǎi / fúyòng

医生说明，氯霉素只能在明确指征下使用，不能自行购买服用。

The doctor explained that chloramphenicol may be used only when there is a clear indication and must not be purchased and taken without medical advice.