名词
中文翻译：Unknown
同义词：
['testimonial', 'attestation', 'certification']
例句：
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3. 例句：1. The witness testified that the crime took place in the park.
证人作证称犯罪发生在公园。
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2. The company's attestation of its financial stability has been questioned by some investors.
该公司对其财务稳定性的证明受到了一些投资者的质疑。
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3. The attestation of the document was authenticated by a notary public.
这份文件的认证由公证员进行。