名词
中文翻译：直梁
同义词：
['straight bar', 'straight rod']
例句：
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1.The car's roof is made ofa straight beam.
这辆车的屋顶是由一根直梁制成的。
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2. The engineer used astraight beam to support the building.
工程师用一根直梁来支撑这座建筑。
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3. Thebeam was so strong that it could holdthe weight of the house.
这根梁非常坚固，足以支撑房屋的重量。