名词
中文翻译：失败线
同义词：
['failure zone', 'failure boundary']
例句：
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1. The company's financial performance has been a failure line for the past five years.
该公司过去五年的财务状况一直是个失败线。
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2. The research team identified a failure line in the data analysis process.
研究团队在数据分析过程中发现了一个失败线。
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3. The project was halted due to a failure line in the budget.
由于预算中的失败线，项目被暂停了。