fire.fly
n.(名词)Any of various nocturnal beetles of the family Lampyridae, characteristically having luminescent chemicals in the posterior tip of the abdomen that produce a flashing light.Also called lightning bug 萤火虫:几种夜间活动的萤科昆虫中的任意一种,明显的特征是腹部的后端内有发冷光的物质,能产生闪烁的亮光也作 lightning bug