基本解释adj.預防性的n.預防法=preventive.同根派生 preventative相关词英汉例句用作形容詞 (adj.)We have to take preventative measures.我們不得不採取預防措施。Preventative measures are always better than huge vet bill later.預防性的檢查治療,永遠比以後昂貴的診療費用要好。preventative更多例句