preventive

/prɪˈventɪv/ adj / n
标准词条 CET-4
一句话记住

预防的；防止的；预防药；预防措施

释义与例句

adj 预防的；防止的
intended to stop something bad from happening
  1. Regular exercise is an important preventive measure against heart disease.
    经常锻炼是预防心脏病的重要措施。
  2. The police took preventive action to avoid riots.
    警方采取预防措施以避免骚乱。
展开其余 1 条例句
  1. Preventive medicine is becoming more popular.
    预防医学正变得越来越受欢迎。
n 预防药；预防措施
something that prevents disease or harm
  1. The vaccine acts as a preventive against the flu.
    这种疫苗可作为预防流感的药物。
  2. Doctors recommend preventives for high-risk patients.
    医生建议高危人群使用预防药物。
展开其余 1 条例句
  1. The new guidelines emphasize preventives over treatment.
    新指南强调预防胜于治疗。

词源与构词

记忆钩子 prevent（预防）+ ive（…的）= 预防的

词族与关联词

词族（同一词根派生出的不同词性或形式）
  • prevent 预防；阻止
    动词词根
  • prevention 预防
    名词形式
同义词
  • prophylactic 预防的；预防剂
    prophylactic 是医学术语，preventive 更通用
    The doctor prescribed a prophylactic drug for the traveller. 医生给旅行者开了一种预防药。
反义词
  • remedial 治疗的；补救的
    remedial 指事后补救治疗，与 preventive（事前预防）相对
    The school offers remedial classes for slow learners. 学校为学习困难的学生开设补习班。
常见搭配
  • preventive measure 预防措施
    Vaccination is an effective preventive measure. 接种疫苗是一项有效的预防措施。
  • preventive care 预防性护理
    Preventive care can save lives and money. 预防性护理既救命又省钱。
  • preventive action 预防行动
    The government took preventive action to stop the spread of the virus. 政府采取预防行动阻止病毒传播。