flare up
collocation突然爆发；突然加剧
The fighting flared up again near the border.
边境附近的战斗再次突然加剧。
熊熊燃烧
flared — past of flare
先理解核心含义，再看它在真实句子里的用法。
熊熊燃烧
to burn with a bright, strong flame
The campfire flared up when he added more wood.
当他添加更多木柴时，篝火突然旺了起来。
使燃烧；尤指烧掉多余气体。
To cause to burn; in particular, to burn off excess gas.
引起炎症；使发炎。
To cause inflammation; to inflame.
形状向外张开。
To open outward in shape.
(操纵飞机)在着陆前从下降转为平飞。
To (operate an aircraft to) transition from downward flight to level flight just before landing.
flare
Base
原形
flares
3rd person
第三人称单数
flaring
-ing
现在分词
flared
Past
过去式
flared
Past participle
过去分词
Her temper flares easily.
她的脾气很容易爆发。
The conflict flared up yesterday.
昨天冲突突然爆发。
The fire is flaring in the wind.
火在风中闪烁。
规则动词，过去式和过去分词加-ed。
Her anger flared when she realized she had been cheated.
当她意识到被骗时，怒火突然爆发。
A match flared in the darkness, lighting up the room for a second.
一根火柴在黑暗中闪了一下，瞬间照亮了房间。
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突然爆发；突然加剧
The fighting flared up again near the border.
边境附近的战斗再次突然加剧。
突然动怒；情绪激动
Tempers flared during the heated debate.
激烈的辩论中，大家的火气一下子都上来了。
鼻孔张大（表示愤怒或兴奋）
His nostrils flared when he heard the rude comment.
听到那句粗鲁的话，他的鼻孔都张大了。
向外展开；呈喇叭形展开
The skirt flares out at the waist.
这条裙子从腰部向外展开。
突然发怒；突然加剧
Don't bring up that topic or he'll flare up.
别提起那个话题，不然他会突然发火。
怒气爆发；众人突然发怒
Tempers flared during the heated debate.
激烈的辩论中，众人突然发起火来。
Use flared naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记忆联想：fl- 像火苗，-are 像向外张开的口袋——火突然蹿高、裙摆外张、怒气爆发，都是“向外炸开”的画面。
语域：mixed 常见场景：新闻报道、日常对话 这里取“突然发生或加剧”的动词义。该词在正式新闻和日常口语中都会出现，语气随搭配和场景而变化；比较常见于描述疾病、冲突、情绪等情况。通常既不算严格正式，也不算随意的俚语。
作为动词时，常与up连用表示'突然爆发'
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.