名词
中文翻译：公告
同义词：
['proclaim', 'declaration', 'announcement例句：1. The company announced the new product yesterday.（公司昨天宣布了新产品。）']
例句：
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1. The company announced the new product yesterday.
公司昨天宣布了新产品。
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2.The government has made an announcement about the upcoming holiday.
政府已经宣布了即将到来的假期。
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3.The president made an announcement at the press conference.
总统在新闻发布会上宣布了消息。