It stands about half a meter tall and has a blue body and a friendly face with big eyes.
VOA: special.2009.12.17
A team from the University of Warwick has built what it calls the world's first completely environmentally friendly Formula Three racing car.
VOA: special.2009.11.03
And,it has been rated one of the most environmentally friendly cities in the world.
VOA: special.2010.02.10
应用推荐