形容词
中文翻译：三棱形的
同义词：
['triangular', 'triangular', 'triangular']
例句：
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1.The building is designed with a trigonal roof.
这座建筑的屋顶是三棱形的。
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2. The trigonal shape of the building makes it look modern and sleek.
这座建筑的三棱形状使其看起来现代而光滑。
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3. The trigonal design of the bridge adds to its aesthetic appeal.
桥梁的三棱设计增加了其美学吸引力。