教材优化全析中国的长城是建筑史上最长的人造建筑物。structure C（大的）建筑物，建造物。例如：The builders had put up a tall structure between the shops.建筑工人已经在商店之间建起一座高层建筑。The Parthenon is a magnificent structure.帕台农神庙是一座宏伟的建筑物。The model is an odd-looking structure of balls and rods.这个模型是由球和杆组成的结构，样子很神奇。2.Most of the Great Wall dates from the Ming Dynasty.长城大部分城墙的建造时间要追溯到明朝。dynastyC王朝；朝代。例如：during the Ming Dynasty 在明朝时期the fall of the Sui Dynasty and the rise of the Tang Dynasty隋朝的覆灭和唐朝的兴起3.At t
