名词
中文翻译：私印
同义词：
['private seal', 'private stamp', 'private sealing']
例句：
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1.The privy seal was a symbol of the monarch's power and authority.
私印是君主权力和权威的象征。
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2.The privy seal was used to authenticate official documents.
私印用于验证官方文件的真实性。
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3. The privy seal was a valuable commodity in ancient times.
私印在古代是一种宝贵的商品。