"We can say that 50 percent of the burden of obesitycan be contributed by having no leisure time physical activity."

VOA: standard.2010.08.10

Obviously with this sort of partitioning of behavior, and activities, and effort, there's not a lot of time leftover for leisure, for development of new technologies and things like this.

显然,采用这样一种,行为,活动及精力的分配方式,自然不会剩下很多时间,用来娱乐,发展技术和改革创新

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选