iron ore

n.铁矿石

irascibly, irate, irately, IRBM, ire, Ireland, iridescence, iridescent, iridium, iris, Irish, Irish coffee, Irish setter (also red setter), Irish stew, Irishman, irk, irksome, iron, iron foundry, iron lung, iron rations, iron-grey, iron-mould (US iron-mold), ironclad, ironic, ironical, ironically, ironing, ironing-board, ironmonger, ironmongery, ironstone, ironware, ironwork, ironworks, irony, irradiate, irradicable, irrational, irrationality,