名词
中文翻译：签名
同义词：
['signature', 'seal', 'mark例句：1. The document has a signature on it.（这份文件上有签名。）']
例句：
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1. The document has a signature on it.
这份文件上有签名。
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2.He signed the contract with his name.
他用自己的名字签了合同。
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3. The signature of the witness is required for the court to accept the evidence.
证人的签名是法庭接受证据的必要条件。