| 摘 要： | Professor Green is a world-famous scientist. And he is always busy thinking about scientific problems and seldom notices what is going on around him. So funny things often happen to him because he is not only absent-minded but shortsighted as well.One fine day recently, he went for a walk in the countryside,but as usual he had a book in his hand, and had no sooner set out for his walk than he became absorbed in reading. He hadn't gone far when he bumped into a cow and fell down. In the fall, …
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