“鳄鱼皮”用英语怎么说？

那是真正的鳄鱼皮。That was real crocodile skin.公家的鞋都是鳄鱼皮做的.All the government shoes are made of alligator hide.鳄鱼皮比通常的皮革要贵5倍.Alligator skin is five times more costlier than leather....