black gold

名词 n.
中文释义

英文释义

名词 n.
  1. Raw petroleum; crude oil. idiomatic,informal,uncountable
    — With the black gold already gushing from his country's wells, the Iranian monarch did not show much interest in what the Republic of China had to offer in agricultural know-how, commerce, and cultural interflow.
  2. Black pepper, in the context of being a historically valuable spice. uncountable
  3. Black-coloured gold, variously produced by patination, deposition, oxidation, etc. and used in jewellery or in high-technology applications. uncountable
  4. Coal. uncountable
    — They [the railways] are mostly remnants of a long-gone coal industry, laid out largely to bring the black gold from the mines to the waterways.

词源

(crude oil; coal; black pepper): From its black colour and high value.
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