precious metal

名词 n.
中文释义

英文释义

名词 n.
  1. A rare metallic chemical element of high economic value, such as gold, platinum, palladium, or rhodium. countable,uncountable
    — The reason for the ruckus: A thief in the night had made off with the car’s catalytic converter, a critical emissions-control device that contains precious metals more valuable than gold.

词形变化

precious metals plural
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