名词
中文翻译：部分边界
同义词：
['boundary', "demarcation例句：1. The section boundary is marked by a fence.（这个部分边界由一堵篱笆标出。）2. The company's section boundary is clear and well-defined.（公司的部门边界清晰且明确。）"]
例句：
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1. The section boundary is marked by a fence.
这个部分边界由一堵篱笆标出。
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2. The company's section boundary is clear and well-defined.
公司的部门边界清晰且明确。
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3. The boundary between the two countries is often contested.
这两个国家之间的边界经常被争议。