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1. Oxford Dictionary

   crude oil

   • n.
     unrefined petroleum

   • noun: crude oil

2. • 釋義

   n.

   名詞

   • 1. unrefined petroleum vast reserves of crude oil were discovered in the region
3. • 更多解釋

   crude oil

   • IPA[ˌkro͞od ˈoil]

   美式

   • n.
     unrefined petroleum: a shortage of crude oil

   Oxford American Dictionary