outbreak

1. N-COUNT If there is an outbreak of something unpleasant, such as violence or a disease, it suddenly starts to happen. (暴動、疾病等的) 爆發(fā)

The four-day festival ended a day early after an outbreak of violence involving hundreds of youths. 由于一起數(shù)百名年輕人參與的暴力事件的爆發(fā)，為期4天的慶?；顒犹崆?天結(jié)束。

...an outbreak of chickenpox. …水痘的暴發(fā)。