名词
中文翻译：前证
同义词：
['previous proof', 'previous evidence']
例句：
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1. The judge accepted the defendant's former proof as sufficient to support his case.
法官接受了被告的先前证据，作为支持其案件的足够依据。
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2. The company used the former proof of its competitors to strengthen its own position.
该公司利用竞争对手的前证来加强自己的地位。
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3. The scientist conducted experiments using the former proof of other scientists to validate his findings.
科学家使用其他科学家的前证进行实验，以验证他的发现。