名词
中文翻译：签名
同义词：
['mark', 'signature', 'seal', 'stamp']
例句：
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1. The company's logo is a distinctive signature on the product packaging.
公司的商标是产品包装上的一个独特签名。
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2. He signed the contract with his lawyer before leaving for vacation.
他离开度假前在律师那里签了合同。
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3. The official seal of the government was placed on the document to authenticate its legitimacy.
政府官员在文件上盖上官方印章以证明其合法性。