pindexpetrolene./pe-truh-leen/US // ˈpɛ trəˌlin //汽油烯,汽油,石蜡,汽油机Definitionsn.noun · 名词1.›any of the constituents of a bitumen, as asphalt, that are soluble in pentane, hexane, or naphthalene.Level 3More words in p →