corrugated/ˈkɔːr.ə.ɡeɪ.t̬ɪd/形容词(尤指铁板或纸板)波纹状的,有瓦楞的The roof is made from sheets of corrugated iron.建造屋顶使用的材料是有波纹的铁板。想跟读,去练习