名词
中文翻译：边界
同义词：
['border', 'edge', 'limit']
例句：
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1.The boundary between our two countries is clear.
我们两国之间的边界非常清晰。
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2. The artist's work often explores the limits of perception.
这位艺术家的作品经常探索感知的极限。
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3.The company's expansion into new markets was a testament to its boundray.
该公司进入新市场的行为证明了其边界。