名词
中文翻译：长城
同义词：
['GreatWall', 'Great Wall of China']
例句：
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1. The Great Wall is oneof the Seven Wonders of the World.
长城是世界七大奇迹之一。
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2. TheGreat Wall runs along thenorthern border of China.
长城沿着中国的北部边界延伸。
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3. TheGreat Wall was built over2,000years ago to protect China from invaders.
长城建于2000多年前，用以保护中国免受侵略者侵袭。