flash-point

n 1 temperature at which the vapour above a liquid such as oil gives a brief flash, but does not catch fire, when a flame is brought near it 闪点; 燃点; 引火点. 2 (fig 比喻) point at which violence or anger breaks out （暴力事件或愤怒的）爆发点: Community unrest is rapidly approaching the flashpoint. 群众的不安定情绪已接近一触即发之势.

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