collidine乙基: aethylis; ethyl; ethyl group甲基: methyl; methylium; carbinyl; ...吡啶: pyridine; pyridina; azine4-乙基-2-甲基吡啶翁: collidinium甲基吡啶2-: methyl pyridine下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:4乙基2甲基吡啶,即可在微信中查询翻译