A volatile mixture of flammable liquid hydrocarbons derived chiefly from crude petroleum and used principally as a fuel for internal-combustion engines and as a solvent,an illuminant,and a thinner.

• 汽油，一种具有挥发性、可燃的烃类混合物液体，主要来自于原油，主要作燃料用，尤用于内燃机，也用作溶剂、照明物或稀释剂。