名词
中文翻译：行政长官
同义词：
['CEO', 'Principal']
例句：
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1. The CEO of the company is expected to make a significant announcement tomorrow.
公司首席执行官预计将于明天做出重要宣布。
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2. The principal announced that the school would be closed for the day due to inclement weather.
校长宣布由于恶劣天气，学校将全天关闭。
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3. Acting as the CEO, he made sure the company's operations continued smoothly during the transition.
作为临时首席执行官，他确保公司在过渡期间运营顺畅。