petroleum
/pɪˈtrəʊlɪəm/noun
mass noun
- a liquid mixture of hydrocarbons which is present in suitable rock strata and can be extracted and refined to produce fuels including petrol, paraffin, and diesel oil; oil石油, 原油。
词源
late Middle English: from medieval Latin, from Latin petra 'rock' (from Greek) + Latin oleum 'oil'.