奥卡万戈三角洲
-
今天为何是荒野爱好者的好日子
Botswana’s Okavango Delta, home to the world’s largest elephant population, is now a UNESCO World Heritage site. TED Fellow Steve Boyes explains why this is a great thing.
Botswana’s Okavango Delta, home to the world’s largest elephant population, is now a UNESCO World Heritage site. TED Fellow Steve Boyes explains why this is a great thing.
