disloyaltyn.
英 dɪs'lɒɪ(ə)ltɪ | 美
中文n. 不忠实；不义，不贞；背信弃义
词根词源
disloyalty (n.)early 15c., from Middle French desloyaulte, from Old French desloiaute, desleauté "disloyalty, faithlessness, marital infidelity," from desloial (see disloyal). Especially of allegiance to a state or sovereign since c. 1600.
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