Users visiting the website created for this study were asked to enter their weight, the food they'd eaten, and their physical activity.

VOA: standard.2010.07.30

So that is really the design for the activity that we have been pursuing since dean done this convened educational technology task force in 1999.

这就是该活动的构思,自从1999年院长建设,教育技术队伍以来,我们一直在追求该目标。

麻省理工公开课 - 媒体、教育、市场课程节选

In different parts of the world you would see this sort of activity for finding food.

在世界任何地方,你都能看到有人在寻找食物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Others last for months or even years. There is no clear way of predicting at the present time how long this activity might go on for."

VOA: standard.2010.04.16