名词
中文翻译：失礼
同义词：
['insult', 'impoliteness']
例句：
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1.He was deeply disappointed when he found out that his friend had betrayed him.
当他发现朋友背叛了他时，他感到非常失望。
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2. The hostess's discourtesy towards the guests made them feel uncomfortable.
女主人的无礼行为让客人感到不舒服。
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3. She apologized for her discourtesy and tried to make amends with the other party.
她为自己的无礼行为道歉，并试图与对方和解。