副词
中文翻译：正式地
同义词：
['officially', 'officially', 'formally例句：1. The official announcement was made yesterday.（昨天发布了官方公告。）']
例句：
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1. The official announcement was made yesterday.
昨天发布了官方公告。
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2. They officially announced the new product yesterday.
他们昨天正式宣布了新产品。
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3. The official website provides detailed information about the event.
官方网站提供了关于该事件的详细信息。