胺能参加与卤代烷的亲核取代反应.Amines can engage in nucleophile substitution reaction with alky.这个反应称为Hofman消除反应, 它很像卤代烷的脱卤化氢反应.This reaction, called the Hofman elimination, is quite analogous to the dehydrohalogenation of an alkyl hal...
她伸手又从衣橱里取出一件运动服。She reached into the wardrobe and extracted another tracksuit.我不开车，公共汽车条件又太糟糕。I don't drive and the buses are quite hopeless.这条裙子会使我的腿看上去又短又粗吗？Does this dress make my legs look too stumpy?...
His second wife, Alice, was determined to alienate him from his two boys.他的第二任妻子艾丽斯，决意要疏远他和两个儿子的感情。On the far side of the street, two boys were playing marbles.在街道的那一边，两个男孩在玩弹子游戏。Boys in the boat bought buoys in the moat...
The ground had opened to disgorge a boiling stream of molten lava.大地开裂，汩汩冒出炽热的熔岩。The city was entombed in volcanic lava.城市被火山熔岩掩埋。Lava is extruded from the volcano.熔岩从火山中喷出。...
You have to know where to stand for a good viewpoint.你得知道站在哪里观察角度比较理想。The handles stand proud of the doors of the car.把手位于车门之外。She is to stand as a Member of the European Parliament.她将竞选欧洲议会议员。...