Dr Kelley called for staggered start times at schools and workplaces as a result of research into the human body's 24 hour rhythms.
根据他这项24小时人体节奏性的研究结果，凯利博士呼吁学校上课时间和企业上班时间应重新调整。
Dr Kelley called for staggered start times at schools and workplaces as a result of research into the human body's 24 hour rhythms.
根据他这项24小时人体节奏性的研究结果，凯利博士呼吁学校上课时间和企业上班时间应重新调整。
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