preventative
/prɪˈventətɪv/📚 19924雅思remedy that prevents or slows the course of an illness or disease; "the doctor recommended several preventatives"
adjective [原级]预防性的；防止的（等于 preventive）
The main preventative agent is simply water.
主要的防护剂就是水。
noun [抽象名词]预防法；预防物（等于 preventive）
All information used in the development of national preventative policies would become generally available.
制定国家预防政策所使用的所有信息将普遍可用。
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