名词
中文翻译：关键
同义词：
['critical', 'keynote', 'vital', 'pivotal']
例句：
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1.The key to solving this problem lies in understanding the underlying causes.
解决这个问题的关键在于理解根本原因。
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2.The keynote speaker was a renowned expert in the field.
主题演讲者是一位在该领域享有盛誉的专家。
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3.Vital information was missing from the report, which made it difficult for us to make decisions.
报告中缺少了至关重要的信息，这使得我们很难做出决定。