名词
中文翻译：Unknown
同义词：
['basis', 'groundwork', 'cornerstone', 'skeleton']
例句：
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1. The foundation of a building is the soil it sits on.
建筑物的基础是它所坐的土壤。
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2.The foundation of our relationship was built on trust.
我们关系的基础是建立在信任上的。
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3. The company's success is based on its strong product line.
该公司的成功建立在其强大的产品线上。