roughness/ˈrʌf.nəs/名词不平整the roughness of his skin他的皮肤粗糙粗鲁,不文雅The roughness of the area put off many buyers.该地区不良的治安状况让许多买家望而却步。(声音的)粗哑、难听Roughness suggests engine failure.糙声表明发动机有故障。想跟读,去练习