形容词
中文翻译：严重的
同义词：
['serious', 'grave', 'seriousness']
例句：
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1.The patient was in a serious condition when he arrived at the hospital.
病人到达医院时病情严重。
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2.The teacher emphasized the importance of being serious about our studies.
老师强调我们要认真学习的重要性。
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3. The situation was serious enough that we needed to take immediate action.
情况非常严重，我们需要立即采取行动。