柯林斯词典perfidy /ˈpɜːfɪdɪ/ 1. N-UNCOUNT Perfidy is the action of betraying someone or behaving very badly toward someone. 背信棄義; 不仁不義[文學性] 返回 perfidy剑桥词典behaviour that is not loyal 背信棄義(行爲);不忠貞(行爲) 返回 perfidy