名词
中文翻译：边界线
同义词：
['border', 'demarcation line']
例句：
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1.The boundary line between the two countries is clear.
两国之间的边界线清晰可见。
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2. The demarcation line of the new road was carefully marked.
新路的分界线被仔细标出了。
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3. The border between India and Pakistan is a sensitive issue.
印度和巴基斯坦之间的边界是一个敏感的问题。