单词	工字钢梁
释义	工字钢梁 steel I-beam
随便看	common neuter gender common neutral Common New Generation Frigate common newt Common Newtonia common newts common nickname common nightblooming cereus Common Nighthawk common nightingale common nightshade common nightshades common niobium oxide Common Nipplewort Herb Common noctule bat common node common node separate model common nod genes common nomenclature common nominee common nominee share certificate common normal common normal length common normal length measurement common normal line