名词
中文翻译：顶梁
同义词：
['top beam', 'top support']
例句：
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1.The roof needs to be reinforced with a top brace to prevent leaks.
屋顶需要用顶梁加固以防止漏水。
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2. The engineer used the top brace to support the heavy load on the bridge.
工程师使用顶梁来支撑桥上沉重的负荷。
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3. The construction crew was working diligently to install the top brace before the rain arrived.
施工队正努力工作，在下雨前安装顶梁。