名词
中文翻译：Unknown
同义词：
['critical action', 'critical role', 'crucial event']
例句：
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1. The keyaction in this project is to ensure the safety of all workers.
这个项目的关键行动是确保所有工人的安全。
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2. The key role of a leader is to inspire and motivate their team.
领导者的关键作用是激励和鼓舞他们的团队。
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3. The crucial event that led to the success of the company was the introduction of new technology.
导致公司成功的关键事件是引入了新技术。