名词
中文翻译：Unknown
同义词：
['disloyalty', 'treachery', 'betrayal', 'unfaithfulness']
例句：
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1. The couple's marriage was a source of disloyalty for their friends.
这对夫妇的婚姻对他们的朋友来说是不忠的源泉。
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2. He was accused of treachery by his colleagues during the scandal.
在丑闻中，他的同事指控他背信弃义。
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3. Betrayal is a term used to describe acts of treachery or deceit.
背叛是描述背信弃义或欺骗行为的术语。