The purpose of learning is growth,and our minds,unlike our bodies,can continue growing as long as we live.
Road：从A到B的路都可以叫Road；Street：城市里东西方向的街道；Avenue：林荫大道，或者是南北方向的街道；Plaza/Square：某个开阔空间（比如广场）周围的道路；Circle：圆形道路，通常围绕着公共空间，意思有点像Square ，还有大环线的意思；Boul
Trail:a path through a countryside， mountain， or forest area， often made or used for a particular purpose 乡间、山间或林间小道，通常为特定用途而设;
