Adventurer and author Levison Wood embarks upon another epic walk, this time following hundreds of elephants migrating 650 miles across Botswana towards the Okavango Delta. 　　译文(2): 冒险家、作家莱维森 · 伍德踏上了另一段史诗般的旅程，这一次他追随着数百头大象穿越博茨瓦纳650英里，向奥卡万戈三角洲迁【资源囤-ZiYuanTun.Com】。