This preparation uses dialkyl imidazole salt, alkyl pyridine salt or caprolactam and fatty acid as reactant.该方法使用带有二烷基咪唑盐 、 烷基吡啶盐或者己内酰胺和脂肪酸作为反应物.Thus the term dialkyl carbonate includes, for example, methyl ethyl carbona...
She was wearing a white ruffled blouse and a blue velvet skirt.她穿着一件有花边的白色上衣和一条蓝色天鹅绒裙子。Her short hair was oddly ruffled and then flattened around her head.她的短发顶心乱糟糟的，周围一圈却很平整，十分怪异。She ruffled his hair affectionately.她情意绵...
With one accord they turned and walked back over the grass.他们步调一致地转身走过草坪。In many cases the disease will clear up of its own accord.这种病很多情况下会自愈。The two sides signed a peace accord last July.在刚过去的七月，双方签订了和平条约。...
He embarrasses discussion of the simplest subject by use of the difficult technical terms.他用难懂的专门字眼使最简单的题目讨论复杂化了.To accept ( these sumptuous gifts ) embarrasses me , but to refuse them would be unmannerly.却之不恭,受之有愧.Sex i...