动词短语
中文翻译：在正式场合发言
同义词：
['Speak in full; speak in public;address in a formal manner']
例句：
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1. The president was speaking in capitals at the press conference.
总统在新闻发布会上用大写字母发言。
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2. He spoke in capitals to emphasize his point.
他以大写字母发言来强调他的观点。
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3. She spoke in capitals during her speech.
她在演讲中用了大写字母。