名词
中文翻译：弓形结构
同义词：
['architecture', 'structure']
例句：
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1. The architect designed the building with an arched roof.
建筑师设计了一座有拱顶的大楼。
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2. The bridge is made of a unique arched structure.
这座桥由一种独特的拱形结构制成。
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3. The ancient city was built on an arched stone wall.
这个古老的城市建在一座石制的拱形城墙上。