outbreak

集団発生、流行

ある場所で病気が急に発生し、広がること。

やさしい英語で： A sudden appearance and spread of a disease in a place.

• The outbreak closed two schools.
• Doctors reported an outbreak of flu.
• Several villages suffered outbreaks of the disease.

使い方： outbreak of something (An outbreak of measles affected the town.)

よく使う表現： disease outbreak, outbreak of flu, outbreak of measles

勃発

暴力や騒動など、望ましくないことが急に始まったり増えたりすること。

やさしい英語で： A sudden start or increase of violence, trouble, or other unwanted activity.

• An outbreak of fighting blocked the road.
• Police feared another outbreak of violence.
• Recent outbreaks of unrest have frightened residents.

使い方： outbreak of something (The match ended with an outbreak of violence.)

類義語： eruption, outburst

よく使う表現： outbreak of violence, outbreak of fighting, outbreak of unrest