名词
中文翻译：负例
同义词：
['counterexample', 'refutation']
例句：
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1.In statistics, a negative instance is an example that contradicts the general rule.
在统计学中，负例是与一般规则相矛盾的例子。
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2. The researcher found several negative instances where the theory failed to apply.
研究者发现了几处理论应用失败的负例。
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3.The teacher used a negative instance to illustrate the importance of critical thinking.
老师用一个负例来说明批判性思维的重要性。