Most direct substitution of groups bound to an aromatic nucleus is limited to diazonium salts.大多数连于芳核能被直接取代的基团仅限于重氮盐.Severe steric effects at the reactive carbon would impede the substitution.大的立体效应阻止在碳上的取代.We use saccha...
"It's only a sprain," Paula said brusquely.“只是扭伤了筋，”葆拉简短生硬地说。He cut off the laughing brusquely with a gesture.他做了个手势,猛然地制止了笑声.There was a laugh which he cut off brusquely with a gesture.人们发出一阵哄笑,他做了个手势,猛然制止了笑声....
He goes to me: "Oh, what do you want?"他问我：“哦，你想要什么？”The policeman smiled at her. "Pretty dog."— "Oh well, thank you."警察冲她笑了笑，“这狗真漂亮。”——“哦，谢谢。”I've been here, oh, since the end of June.我是，呃，6月底来到这里的。...
Try strokes , caresses, nips, pinches and gentle scratches.你可以试试敲打, 轻抚, 掐, 捏,或是轻轻抓挠.The gentlest of her caresses would contort his already tense body.她最温柔的爱抚会让他已然紧绷的身体变得扭曲。A breeze caresses the cheeks.微风拂面.Thou escaped w...