名词
中文翻译：基础环
同义词：
['base ring', 'foundation circle']
例句：
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1.The foundation ring is the first layer of a building's structure.
基础环是建筑物结构的第一层。
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2. The foundation ring supports the entire building.
基础环支撑整个建筑。
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3.The foundation ring was designed to prevent water leakage.
基础环被设计来防止漏水。