名词
中文翻译：Unknown
同义词：
['stamp', 'tax stamp']
例句：
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1. The government issued a new set of stamps to commemorate the centennial of the independence.
政府发行了一套新的邮票，以纪念独立一百周年。
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2. The stamp collectors are always eager to collect rare stamps.
集邮爱好者总是渴望收集稀有的邮票。
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3. The stamps were sold at a premium because they were considered valuable by many collectors.
这些邮票因为被许多收藏家视为珍贵而售价较高。