形容词
中文翻译：急性的
同义词：
['severe', 'acute', 'sharp', 'keen']
例句：
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1. The patient had an acute attack of pain.
病人突然发作了一次剧烈的疼痛。
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2. The scientist made an acute observation of the phenomenon.
科学家对这一现象进行了敏锐的观察。
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3. The disease is often characterized by its acute symptoms.
这种疾病通常以其急性症状为特征。