名词
中文翻译：边界
同义词：
['limit', 'limitline', 'demarcation']
例句：
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1. The boundary between the two countriesis very clear.
两国之间的边界非常清晰。
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2.The boundary of the park is marked witha fence.
公园的边界被一道围栏标出。
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3. The boundary of the forest wasnot clearly defined.
森林的边界没有明确划分。