precious metals

英 美
  • [经]贵重金属
  • metals n.五金名词metal的复数形式.
  • precious adj.宝贵的;珍贵的;矫揉造作的adv.极其n.宝贝,心爱的人
名词 precious metal:
  1. any of the less common and valuable metals often used to make coins or jewelry