名词
中文翻译：桁架
同义词：
['arch', 'architrave', 'arched roof']
例句：
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1.The bridge is supported by a series of arches.
这座桥由一系列拱形支撑。
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2.The architect designed the building with an arched roof.
建筑师设计了一座带有拱形屋顶的建筑。
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3. The structure was constructed using arch trusses to support its weight.
该结构使用了桁架来支撑其重量。