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单词	piperylene
释义	piperylene noun piper·​y·​lene pīˈperəˌlēn, pə̇ˈp-; ˈpipər- plural -s : an oily diolefin hydrocarbon CH3CH=CHCH=CH2 isomeric with isoprene formed in the cracking of petroleum and also made synthetically (as by exhaustive methylation of piperidine); 1,3-pentadiene Word History Etymology International Scientific Vocabulary piperidine + -ylene
随便看	esbats Esbjerg esc esca escabeche escadrille escadrilles escalade escaladed escalader escaladers escalades escalading escalado escaladoes escalate escalated escalates escalating escalation escalations escalator escalators escalatory escallonia

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