名词
中文翻译：Unknown
同义词：
['confirmation', 'verification', 'validation']
例句：
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1. The evidence provided by the witness was substantiation of his claims.
证人提供的证据证实了他的主张。
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2. The company's financial statements were carefully reviewed to ensure their accuracy and substantiation.
公司财务报表经过仔细审查，以确保其准确性和有效性。
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3. The new policy has been substantiation of our commitment to sustainability.
新政策是我们对可持续发展承诺的证明。