/fleə(r) ||; flɛr/verb [I] to burn for a short time with a sudden bright flame 闪起火光
flare up 1 (used about a fire) to suddenly burn more strongly （指火）突然旺起来
2 (used about violence, anger, etc) to start suddenly or to become suddenly worse （指暴力、怒气等）爆发，加剧