加拿大Ivey教授Frank
去过的国家公园 part II: Big Cypress, Everglades in Florida; Appalachian in Georgia; Yellowstone in Idaho; Tallgrass Prairie in Kansas; Mammoth Cave in Kentucky; Hary Truman Home, Gateway Arch, Ozark in Missouri; Glacier in Montana; Lake Mead in Nevada; Petroglyph in New Mexico 展开全文原微博