名詞 flare-up:

1. a sudden violent happening
   同義詞：outburst, burst

動詞 flare-up:

1. ignite quickly and suddenly, especially after having died down
   同義詞：flare up
2. erupt or intensify suddenly
   同義詞：erupt, irrupt, flare up, flare, break open, burst out

flare-up

n.（名詞）
A sudden outbreak of flame or light:
驟燃，驟發(fā)：突然的燃燒或閃耀：
例句：
a flare-up of the embers.
余火的突然閃耀

An outburst or eruption:
暴怒：突然的爆發(fā)或迸發(fā)：
例句：
a flare-up of anger.
怒氣的爆發(fā)

A recurrence or an intensification:
再發(fā)：反復出現(xiàn)或加劇：
例句：
a flare-up of rheumatism.
風濕病的加劇