prevalence
noun /ˈprevələns/
  /ˈprevələns/
[uncountable] (formal)- the fact of existing or being very common at a particular time or in a particular place
- an increase in the prevalence of smoking among young people
 
 
| 单词 | prevalence | 
| 释义 | prevalencenoun /ˈprevələns/   /ˈprevələns/ [uncountable] (formal)
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