preventive
adj. 预防（性）的，防备的
n. 预防药，预防疗法
复数 preventives
例句
We must take preventive measures to reduce crime in the area.
我们必须采取预防措施来减少这个地区的犯罪。
《牛津词典》
The police were able to take preventive action and avoid a possible riot.
警方及时采取防范措施，避免了可能发生的骚乱。
Too much is spent on curative medicine and too little on preventive medicine.
在治疗医学上花费太多，而在预防医学上花费太少。
《柯林斯英汉双解大词典》
