tetramethylurea四: four甲: the first of the ten Heavenl ...脲: urea; carbamide甲脲: methyl urea; methylurea四甲: sijia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:四甲脲,即可在微信中查询翻译