就在你给的链接的下面阿：
Thousands of years ago,the great philosopher Mencius said:"A trail through the mountains,if used,becomes a path in a short time,but,if unused,becomes blocked by grass in an equally short time."
奥巴马用英语怎么说的这句话：“山径之蹊间,介然用之而成路,为间不用,则茅塞之矣
就在你给的链接的下面阿：
Thousands of years ago,the great philosopher Mencius said:"A trail through the mountains,if used,becomes a path in a short time,but,if unused,becomes blocked by grass in an equally short time."