"Flamingos have evolved very leathery skin on their legs so they can tolerate the salt water," says David Harper, a professor at the University of Leicester.
莱斯特大学教授戴维·哈珀表示：“火烈鸟的腿上已经进化出了非常坚韧的皮肤，这样它们就可以忍受盐水。”
2
Her skin was leathery, her hands rough.
皮肤跟皮革似的，手也很粗糙。
3
Floating inside was a leathery ball-shaped object.