gunmetal [ˈɡʌnˌmɛtl]

例句:

• Opening his lips to disclose an unappealing collection of gunmetal fillings.
  来自J. Raban
• Nowadays badges are stamped out of gunmetal.
  现在徽章是用模具从炮铜中冲压出来的.
  
• Gunmetal sheen of sundown bathes craggy terrain where the Rio Grande cuts a tortuous path.
  崎岖的山体被蜿蜒的里约格兰地河切断,在夕阳下呈现出暗灰色光泽.
  
• The Finns dart and weave, their white wakes leaving intricate patterns in the gunmetal swell.
  来自BBC
• It is gunmetal blue on top, and silvery on the underside, and its tail looks like a sickle.
  来自NEWYORKER