形容词
中文翻译：Unknown
同义词：
['sluggish', 'lethargic', 'slow-witted', 'dull-witted']
例句：
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1. The old man was obtundent with age and could hardly move.
老人年岁已高，行动迟缓。
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2.Her mind was obtundent from overwork.
她因过度劳累而变得迟钝。
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3.The child was obtundent with sleep and did not wake up until the morning.
孩子因为困倦而昏昏欲睡，直到早上才醒来。