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...
But Miss Ellen she went down dar an'she nuss Emmie.可是爱伦小姐还是去了,她在那里照料埃米.Tara mah home an'Ah is aimin'ter go back dar.塔拉是我的家,我还想回去呢." Ah got dar fo'dey done mo'n t'ar her dress. "" 他们没来得及再撕她的衣...
He got undressed in the bathroom.他在浴室里脱了衣服。'Would you get undressed, please?' — 'I beg your pardon?' — 'Will you get undressed?'“请你脱掉衣服，好吗？”——“你说什么？”——“脱掉衣服，好吗？”Fifteen minutes later he was ...
朱莉和霍莉星期四都回来吃早餐.Julie and Holly come over Thursdays for our weekly bake fest.霍莉尾随我匆忙赶到勒马尔的教室.I hurried to LeMar's home classroom, Holly trailing behind me.霍莉: 那请别再盯着我, 很讨厌.Holly: Then please stop staring at me, it�...
It's couched in such very user-unfriendly terminology.文中使用了令用户敬而远之的术语。He couched his request in very polite terms.他以非常礼貌的言词表达了自己的要求.The reply was couched in insolent terms.回答措词蛮横....
Spotting prey, the customary crowd of hustlers and touts swarmed around, jostling for my business.照例有大群的拉客黄牛在寻觅猎物, 他们争相过来抢我的生意.You get 2,000 people jostling each other and bumping into furniture...2,000个人互相推推搡搡，撞在家具上。The...
By the age of two most children have begun to communicate verbally.大多数孩子两岁时就开始用说话沟通.By the age of sixteen he was the junior lightweight champion of Poland.16岁时他已经是波兰的青少年组轻量级冠军。By the age of seven he could write beautiful...