形容词
中文翻译：未被证实的
同义词：
['unverified', 'unconfirmed例句：1. The report was unvouched by the authorities.（该报告未得到当局的证实。）']
例句：
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1. The report was unvouched by the authorities.
该报告未得到当局的证实。
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2. The witness's testimony was unvouched by the police.
警方未对证人的证词进行核实。
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3.The company's financial statements were unvouched by the auditor.
审计员未对该公司财务报表进行验证。