noun🔗Share萤火虫，流萤 Any beetle of the family Lampyridae, which exhibit bioluminescence during twilight."We caught a firefly in a jar and watched it glow in the dark. "我们捉了一只萤火虫放在罐子里，看它在黑暗中发光。insectanimalnaturebiologyenvironmentChat with AIVocabulary GamePractice Reading
