| 释义 |
pet.rol.e.umHpE5trEJ7li7Em, $-5troJ-n [U]a dark thick oil obtained from under the ground, from which various substances including PETROL, PARAFFIN and DIESEL oil are produced石油Petroleum jelly is a clear, JELLY-like substance made from petroleum, used as a base for medicines which are rubbed into the skin, and also for making parts in a machine move smoothly against each other.石油冻，矿脂
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