名词
中文翻译：接触调查
同义词：
['investigation', 'inquiry', 'probe']
例句：
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1.The company conducted a thorough contact investigation to identify the root cause of the problem.
该公司进行了彻底的接触调查，以确定问题的根源。
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2.The investigation revealed that the accident was caused by human error.
调查发现，事故是由人为错误引起的。
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3. The government launched an inquiry into the matter to gather more information.
政府启动了一项调查，以收集更多信息。