pre
va
lence
复数形式
prevalences
1
普及, 频率
the state or quality of existing or happening every commonly in a specific place or at a specific time
- The prevalence of smartphones has changed the way people communicate.
智能手机的普及改变了人们的沟通方式。
- The study examined the prevalence of diabetes in urban areas.
该研究调查了城市地区糖尿病的患病率。
- There is a high prevalence of flu cases during the winter months.
冬季流感病例的流行率很高。
- The prevalence of online shopping has led to the decline of many physical stores.
在线购物的普及导致了许多实体店的衰落。
- Researchers are concerned about the prevalence of plastic waste in the oceans.
研究人员对海洋中塑料废物的普遍性感到担忧。
2
3
流行率, 频率
(epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population