柯林斯词典perfidy /ˈpɜːfɪdɪ/ 1. N-UNCOUNT Perfidy is the action of betraying someone or behaving very badly toward someone. 背信弃义; 不仁不义[文学性] 返回 perfidy剑桥词典behaviour that is not loyal 背信弃义(行为);不忠贞(行为) 返回 perfidy