名词
中文翻译：神经错乱
同义词：
['dementia', 'mental illness']
例句：
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1. His father's sudden death left him with a severe psychiatric disorder.
他父亲的突然去世使他患上了严重的精神病。
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2. The patient was diagnosed with dementia and required constant care.
患者被诊断为痴呆症，需要持续照顾。
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3. The old man's behavior seemed to be the result of his dementia.
老人的行为似乎是他痴呆的结果。