Word · Frequency #19155
preventative
预防药
核心释义
remedy that prevents or slows the course of an illness or disease
- 1.
预防药
remedy that prevents or slows the course of an illness or disease
- 2.
障碍
any obstruction that impedes or is burdensome
- 3.
避孕工具
an agent or device intended to prevent conception
避孕工具;障碍;预防法;预防措施;预防物
用法In use
The doctor prescribed a preventative to help lower her risk of heart disease.
用法提示:此处 preventative 为名词,作 prescribe 的宾语,意为“预防药”。
Regular exercise is often called a good preventative against the common cold.
用法提示:此处 preventative 为名词,作表语,并搭配 against 表示“预防……的措施”。
Some people keep vitamin C pills as a preventative when traveling abroad.
用法提示:此处 preventative 为名词,作 as 的宾语,指“预防药/预防用品”。
相关词与表达Connections
搭配Collocations
- a preventative against
- 预防……的药物或措施
- Regular exercise can be a preventative against heart disease.经常锻炼可以预防心脏病。
- an effective preventative
- 有效的预防药或预防措施
- This vaccine is an effective preventative for the flu.这种疫苗是预防流感的有效手段。
- use a preventative
- 使用预防药;采取预防措施
- Doctors recommend using a preventative if you travel to high-risk areas.医生建议,如果你前往高风险地区,应使用预防药物。
- as a preventative
- 作为预防措施
- Some people take garlic as a preventative against colds.有些人服用大蒜作为感冒的预防措施。
学习提示Learner notes
记忆技巧Memory Tip
联想 prevent(阻止、预防):preventative 就是“用来预防/阻止的东西”,如预防药、避孕工具、障碍。
语境与语域Context & Register
语域:neutral 常见场景:medical consultations、pharmacy labels、health articles 作为名词,preventative 多用于医疗或保健语境,可指预防药、障碍或避孕工具;具体含义视上下文而定。
发音与拼写Pronunciation & Spelling
以 -ative 结尾的 representative、tentative、conservative、laxative、affirmative 都与 preventative 的尾部拼写和读音 /ətɪv/ 相同,但重音位置不同,因此并不真正押韵。preventive 是容易看错的形近词:它没有 -ative 中的 /ə/ 音节,读作 /prɪˈvɛntɪv/。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.