"People who were physically active on a regular basis had lower risk of cognitive impairments in late life.

VOA: special.2010.07.07

It used to be a lot easier to be physically active then it is today, and we'll discuss this later in the class, but energy saving devices all over the place.

在过去,人们比现在从事更多的体力活动,这一点我们以后再讲,帮助你省力的装置,如今随处可见

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Getting children to be more physically active in and after school and improving playgrounds in neighborhoods.

VOA: special.2010.06.07

"Being physically active on a regular basis is a difficult thing, but the MyActivity Pryamid offers adults a variety of ways that they can reach these recommendations for health and improving the quality of life."

VOA: standard.2010.02.26