名词
中文翻译：调查证明书
同义词：
['investigation report', 'investigation certificate']
例句：
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1. The company issued an investigation certificate to the police for their investigation into the accident.
公司为警方的事故调查颁发了一份调查证明书。
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2. The student handed in his investigation certificate as required by the teacher.
学生按照老师的要求交上了他的调查证明书。
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3. The investigation certificate was used as evidence in the court case.
调查证明书作为法庭案件的证据被使用了。