The adult learner has enormous pressures on them to not take time out to learn, but instead to continue working in their working environment and in the context that they are in the day-to-day environment.

成年学者压力很大,他们不能抽出时间学习，只能在工作场所,不停地工作,在这种情况下,他们每天处于一个环境。

麻省理工公开课 - 媒体、教育、市场课程节选