flashlight

n. 手电筒, 闪光信号灯

flash.light

n.（名词）
A small, portable lamp usually powered by batteries.
手电筒：一种通常用电池供电的小型便携式电灯
A brief, brilliant flood of light from a photographic lamp.
闪光：摄影灯发出的短暂而明亮的一大片光
A bright light, as of a beacon or signal lamp, that flashes at regular intervals.
闪光信号灯：在规则的时间间隔内闪烁的明亮的灯，象灯塔或信号灯等