Benzyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,丁酸和苄醇为原料合成丁酸苄酯.Isoamyl butyrate was synthesized by using potassium bisulfate as the catalyst.以硫酸氢钾为催化剂,正丁酸和异戊醇为原料合成了正丁酸异戊酯.Isoamyl bu...
他们填了一肚子的冰激凌、巧克力和棒棒糖。They stuffed themselves with ice creams, chocolate and lollies.凯文想舔一下萨拉的棒棒糖.Kevin wanted a lick of Sarah's lollipop.我给她买了棒棒糖,一吹就呜的打响的小喇叭. 我就往回走.I bought lollipops and a toot - toot bugle. I start...
史蒂文斯给他写了张便条，请他去自己的公寓。Stevens wrote him a note asking him to come to his apartment.史蒂文斯遭谋杀源于深仇宿怨。Stevens's murder was the result of a deep-seated and intense hatred.约翰·史蒂文森是谢菲尔德大学的历史学高级讲师。John Stevenson is Reader in ...