单词	F.de.Saussure
释义	F.de.Saussure 索绪尔
随便看	petroleum contract petroleum cooker petroleum cooperation petroleum corporation petroleum council Petroleum County petroleum cracking petroleum cracking process petroleum crisis petroleum crude petroleum crude benzene petroleum crude oil petroleum culture petroleum cut petroleum cuts petroleum-dealing system petroleum degradable bacterium Petroleum degradation petroleum-degradation bacterial Petroleum degradation becteria petroleum-degradation microorganisms petroleum degradation rate petroleum-degrader Petroleum-degrading bacterium petroleum-degrading microorganism