我们来了之美国游记 Part 18--探索自然奇观—科罗拉多大峡谷。United States, here we came! part 18-- Discover the magic Grand Canyon.

我们来了之美国游记 Part 18--探索自然奇观—科罗拉多大峡谷。United States, here we came! part 18-- Discover the magic Grand Canyon. | SteemCN