Motivation to learn must come from the child; it cannot be artificially imposed.学习的动力必须源于孩子自身，是不可以人为强加的。Scientists believe the frozen eggs stand a good chance of a pregnancy after being artificially fertilised.科学家们相信冷冻卵子...
...a sneak preview of the type of car that could be commonplace within ten years.可能在10年内普及的车型的内部预展Alan Saunders: So here we have facsimiles of commonplace objects being displayed as works of art.桑德斯: 如此说来,在这里我们就看到了一些对寻常物...