名词
中文翻译：Unknown
同义词：
['hallucination', 'illusion', 'hallucinations']
例句：
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1. She had a vivid dream about the future.
她做了一个关于未来的生动的梦。
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2. The doctor told her that she had a false sense of security.
医生告诉她，她有一种错误的安全感。
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3. He was convinced that he was in a dream.
他确信自己是在做梦。