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  • 国家地理:The Coliseum 古罗马竞技场

    The solution lay in three key architectural innovations that formed the secret of Rome's great monuments. The most important, is the arch. The arch is an almost perfect design for bearing heavy loads. And that design is so simple. A series of wedge -...

  • 有声英文阅读-巨蛋始祖:罗马竞技场

    Do as the Romans Did? 巨蛋始祖:罗马竞技场 Inaugurated1 in A.D. 80 by the emperor Titus, the Roman Colosseum is the earliest prototype of the modern superdome. With a perimeter of 527 meters...

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