noun🔗Share光子，光量子 The quantum of light and other electromagnetic energy, regarded as a discrete particle having zero rest mass, no electric charge, and an indefinitely long lifetime. It is a gauge boson."Sunlight is made of tiny particles called photons. "阳光是由被称为光子的微小粒子组成的。physicsenergyastronomyelementphenomenaChat with AIVocabulary GamePractice Reading
