outbreak

US /ˈaʊt.breɪk/
UK /ˈaʊt.breɪk/
"outbreak" picture
1.

爆發, 發作, 流行

a sudden occurrence of something unwelcome, such as war or disease

:
The sudden outbreak of the flu caught everyone by surprise.
流感的突然爆發讓所有人措手不及。
There was an outbreak of violence in the city.
城市裡爆發了暴力事件。