It is suggested that 5,000-6,000 years ago people in the Middle East and North Africa started to allot specific lengths of time to tasks.
据说，在5000至6000年前，中东和北非的人们开始分配特定时间段来完成任务。
It is suggested that 5,000-6,000 years ago people in the Middle East and North Africa started to allot specific lengths of time to tasks.
据说，在5000至6000年前，中东和北非的人们开始分配特定时间段来完成任务。
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