The group stated that the national day for the environment would be "more than a day of fruitless talking."

VOA: special.2010.04.21

There's a group of people in the United States and elsewhere who studied something called the Built Environment- how the environment is built affects how much physical activity we get.

在美国以及其他地区有这样一群人,进行着被称为环境构建的研究,研究环境的构建是怎样影响我们的活动量

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 group has helped connect young people who are interested in working to save animals and the environment.

VOA: special.2009.11.18

The group says it could be hard to stop experimental organisms from entering the natural environment.

VOA: special.2010.07.20

Another group lived in what the researchers call an enriched environment up to 20 mice per cage,with toys, hiding places,and running wheels.

VOA: standard.2010.07.14

Mike Shanahan is from the London-based research group International Institute for Environment and Development.

VOA: standard.2009.11.04