名词短语中文翻译
中文翻译：投诉调查
同义词：
['investigation ofcomplaint', 'investigation into complaint']
例句：
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1. The company conducted a thorough investigationinto the complaint about the product quality.
公司对产品质量投诉进行了彻底的调查。
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2. The policelaunched an investigation into the murder case afterreceiving the complaint.
警方在接到投诉后，对这起谋杀案展开了调查。
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3.The investigation revealed that the incident was causedby human error rather than any deliberate sabotage.
调查显示，这一事件是由于人为错误而非蓄意破坏造成的。