The F.T.C.estimates that food,drink and fast-food restaurants spent more than one and a half billion dollars on advertising to young people in two thousand six.

VOA: special.2010.06.04

We can't go C, D, D-sharp, F.

不能是C,D,升D,F

耶鲁公开课 - 聆听音乐课程节选

In nineteen eighty-four, the John F.Kennedy Center for the Performing Arts in Washington,D.C.

VOA: special.2009.11.29

The F.C.C.currently defines high-speed Internet as an information service.

VOA: special.2010.05.21