prevalence

n. 传播,流行,普及

pretend, pretend to do sth., pretender, pretense, pretension, pretentious, pretentiousness, preterite (US preterit), preternatural, preternaturally, pretext, prettify, prettily, prettiness, pretty, pretty-pretty, pretzel, prevail, prevail over, prevailing, prevalent, prevaricate, prevarication, prevaricator, prevent, prevent...from, prevent...from..., preventable, prevention, preventive, preventive (also preventative), preventive detention, preview, previous, previously, prey, prey on, price, price control, price war,