noble metals

常見(jiàn)例句

• My father deals in precious metals.
  我父親在經(jīng)營(yíng)貴金屬的生意。
• Whatever sending the precious metals out of a country will impoverish it.
  將貴金屬?gòu)囊粋€(gè)國(guó)家運(yùn)出都會(huì)使其變窮。
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