钢轨 gāngguǐ steel rail Origin Definitions Defs Strokes Stroke Words Sentences Sents 钢 鋼 gāng noun steel steel; an alloy of iron and carbon that is tougher than cast iron and harder than wrought iron轨 軌 guǐ noun rail (bound form) a rail or track for vehicles like trains and trams; a steel rail used in construction