名词
中文翻译：不忠的
同义词：
['unfaithful', 'untrustworthy', 'betrayal']
例句：
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1. He was accused of being munjistin by his colleagues.
他被同事们指控为不忠。
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2. The couple's relationship is in crisis due to their munjistin behavior.
由于不忠的行为，这对夫妇的关系陷入了危机。
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3. She was shocked when she found out her husband had been munjistin.
当她发现丈夫不忠时，她感到非常震惊。