She was now shaking with long, racking sobs.她正剧烈地抽噎着，浑身颤抖。All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.整整一晚我辗转反侧,绞尽脑汁,想弄明白是什么原因竟能促成这个年轻人自杀.H...
All night I have been tossing and turning racking my brains to think what could have possessed the young man to kill himself.整整一晚我辗转反侧,绞尽脑汁,想弄明白是什么原因竟能促成这个年轻人自杀.He was racking his brains for a course of action.他在脑子里拼命寻找一...
He always had this inane grin...他总是这样傻傻地咧嘴笑。Theories deviating practices are inane , while practices deviating theories are blindfold.脱离实践的理论是空泛的, 脱离理论指导的实践是盲目的.He always had this inane grin.他总是这样傻傻地咧嘴笑。She started askin...
此反应得到的产物为二烷基苯基丙二酸酯的碱金属盐衍生物.The immediate products of this reaction are alkali - metal derivatives of dialkyl phenylmalonates.CRL脂酶对S - (-) -N- ( 2, 6- 二甲苯基 ) - 丙氨酸甲酯作用速度远大于R-(+)-异构体.CRL was reacted much more quickly with...