The Census Bureau says swimming was the third most popular sports activity in the United States in two thousand seven.
VOA: special.2010.06.08
A city report says economic activity last year totaled almost three billion dollars, a four percent decrease from two thousand seven.
VOA: special.2009.03.30
She says people might have difficulty completing an activity if they cannot expect some kind of reward in return.
VOA: special.2009.09.29
Those scientists included researchers who question the idea that human activity is causing temperatures in the atmosphere to rise.
VOA: special.2010.04.27
Other things including high fat diets and reduced physical activity are also believed to be pushing the numbers upward.
VOA: special.2009.03.02
This medicine seems to work by governing the activity of a chemical involved in information processing, storage and memory.
VOA: special.2011.02.08
The party opposes his plan to cut taxes for middle class Americans and use of government spending to increase economic activity.
VOA: special.2009.05.02
They answered questions about their level of physical activity as teenagers and at age thirty, fifty and late in life.
VOA: special.2010.07.07
But one activity that legally is only supposed to be for people age twenty-one and over is drinking alcohol.
VOA: special.2009.08.07
Laura Middleton says the research showed that even low-intensity activity reduced the risk of thinking problems and memory loss.
VOA: special.2011.07.27
A report from last year said women business owners are responsible for three trillion dollars a year in economic activity.
VOA: special.2010.04.23
Other scientists have shown that sun spot activity can be measured in periods of time that last about eleven years.
VOA: special.2009.09.29
The Forest Service is protecting the area from too much human activity so it will return to its natural wild condition.
VOA: special.2009.07.20
I might say I touched all the bases if I did what is necessary to complete a job or activity.
VOA: special.2009.04.12
应用推荐