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记忆方法
1、pre- + val- "have power, be strong" + -ence.
2、含义：be stronger, have greater power.
2、含义：be stronger, have greater power.
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词族 · prevalence
英语词源
- prevalence (n.)
- 1590s, "fact of having mastery," from Middle French prévalence (15c.), from Late Latin praevalentia, from praevalens, present participle of praevalere (see prevalent). Meaning "condition of being widespread or general" is from 1713.
权威例句
- 1. Despite its prevalence, schizophrenia has existed behind a wall of secrecy for years.
- 尽管精神分裂症患者为数众多，但多年来这种病一直被捂着掩着。
- 2. They were very surprised by the prevalence of anti - government sentiments.
- 他们对普遍存在的 反 政府情绪感到很吃惊.
- 3. Thus, the prevalence of the disease'should be significantly reduced " by the new regulation.
- 所以, 这种棉屑病应该通过落实新规章而“大大的减少 ”.
- 4. It has to do with the prevalence and features of a disease in a population.
- 它研究人群中疾病的流行和特征.
- 5. And the overall contraceptive prevalence rate of married women of childbearing age has reached 83 percent.
- 已婚育龄妇女综合避孕率达到83%.