They were also asked how often they played computer games and listened to the radio.

VOA: special.2009.03.10

That's where you're just asked over a period of time, how often you eat this list of foods and you're given a very long list of foods.

正如同你们刚才问的,你多久吃一次这些食物,你有一个很长的食物列表

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

The jurors are asked to approve efforts to gather evidence, often secretly,to build a case.

VOA: special.2009.08.31