“石墙”用英语怎么说？

凸凹不平的石墙就像一条很深的运河的河岸。The rough rock walls were like the sides of a deep canal.在这片以石墙隔出巴掌大的农田的乡村，驴子比汽车还多。Donkeys outnumber cars in this landscape of tiny stone-walled fields.有20人被倒塌的石墙砸伤。Twenty people were injured by falli...