flare up
phrasal verbflare up 
- (of flames, a fire, etc.火焰、火等 突然旺起来 - He put more logs on the fire and watched it flare up again.他把更多的木头放在火上,看着它再次燃烧。 
 
- He put more logs on the fire and watched it flare up again.
- (of a person人 突然发怒 - She flares up at the slightest provocation.她一受到最轻微的挑衅就大发雷霆。 
 
- She flares up at the slightest provocation.
- (of an illness, injury, etc.疾病、损伤等 复发;突然加剧 - His eczema has flared up again.他的湿疹又发作了。 
 related noun flare-up (2)
- His eczema has flared up again.