2017-12-24 The Art of Walking, The Joy of Garbage, Unusual College Classes
How much can walking really teach you? Can you learn enough from walking to make an entire college class about it? Kenneth Keffer thinks you can, and he should know.…
VOA英语教学网 - VOA LEARNING ENGLISH
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
How much can walking really teach you? Can you learn enough from walking to make an entire college class about it? Kenneth Keffer thinks you can, and he should know.…