[N-COUNT 可数名词]（疾病的）流行，传播 If there is an epidemic of a particular disease somewhere, it affects a very large number of people there and spreads quickly to other areas.
[oft n N]
A flu epidemic is sweeping through Moscow.
一场流感正席卷莫斯科。
...a killer epidemic of yellow fever.
致命的黄热病的流行
2
[N-COUNT 可数名词]（坏事的）盛行，泛滥，猖獗 If an activity that you disapprove of is increasing or spreading rapidly, you can refer to this as an epidemic of that activity.
[with supp]
[disapproval]
...an epidemic of serial killings...
连环杀人现象的猖獗
Drug experts say it could spell the end of the crack epidemic.
禁毒专家说它可能会结束强效可卡因吸食泛滥的局面。
Oxford
epi·dem·ic/ˌepɪˈdemɪk; NAmEˌepɪˈdemɪk/noun1a large number of cases of a particular disease happening at the same time in a particular community 流行病◆the outbreak of a flu epidemic流感的爆发◆an epidemic of measles麻疹的流行2a sudden rapid increase in how often sth bad happens （坏事迅速的）泛滥，蔓延◆an epidemic of crime in the inner cities内城区犯罪活动盛行▶epi·dem·icadjective◆Car theft is now reaching epidemic proportions.汽车偷盗现已近泛滥成灾。☞compare
1a large number of cases of a disease that happen at the same time → pandemic: Over 500 people died during last year’s flu epidemic.epidemic of an epidemic of cholera2a sudden increase in the number of times that something bad happensepidemic of Britain is suffering an epidemic of petty crime.—epidemic adjective [only before noun]: Violent crime is reaching epidemic proportions in some cities.
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