1. Like the Theory of Relativity, the splitting of the atom, and the first space flight, Dolly's appearance has generated a long list of difficult puzzles for scientists, politicians, and philosophers.
    就像相对论、原子裂变和第一次太空飞行一样，多莉的出现给科学家、政治家和哲学家们提出了一长串难以解答的难题。