jiǎ yǎng xī lín / shì / yī zhǒng / yòng yú / zhì liáo / xì jūn / gǎn rǎn / de / kàng shēng sù甲氧西林是一种用于治疗细菌感染的抗生素。Methicillin is an antibiotic used to treat bacterial infections.