名词
中文翻译：官方机密
同义词：
['secretary', 'confidential', 'top secret']
例句：
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1.The government has classified the information as "official secrets".
政府已将该信息分类为“官方机密”。
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2.The president kept the details of the meeting off the record.
总统对会议的细节守口如瓶。
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3.The company's top secret formula was finally revealed to the public.
公司的秘密配方终于向公众透露了。