His mind had begun to wander again, and to be perplexed by hallucinations, while his lucid intervals grew rarer and shorter.是什么意思_His mind had begun to wander again, and to be perplexed by hallucinations, while his lucid intervals grew rarer and shorter.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句