penicillin
/ˌpɛnəˈsɪlən/
any of various antibiotics obtained from Penicillium molds (or produced synthetically) and used in the treatment of various infections and diseases
中文释义:青霉素
The discovery of penicillin revolutionized the treatment of bacterial infections.
青霉素的发现彻底改变了细菌感染的治疗方法。
Some patients are allergic to penicillin and must use alternative antibiotics.
一些患者对青霉素过敏,必须使用替代抗生素。