[ 'fәutɒn ] 柯林斯星级 ★☆☆☆☆ BNC词频 17697 COCA词频 9947 n. 光子, 光量子, 光度 [化] 光量子; 光子 n. a quantum of electromagnetic radiation; an elementary particle that is its own antiparticle 复数: photons 英汉双解字典由 ECDICT 提供