adj.预防疾病的

n.预防药；避孕用品

This article reviewed the advances on prophylactic use of antibiotics in SAP. 本文就预防性应用抗生素在SAP中作用的研究进展作一综述。

Education by itself is no paranormal prophylactic. 这是光凭教育无法预防的。

Eating too much urgent prophylactic is harmful to the health. 紧急避孕药吃太多很伤身。