名词
中文翻译：边界堆
同义词：
['border post', 'border marker例句：1. The border piles were placed at the entrance of the village to mark the boundary.（在村庄入口处放置了边界桩来标记边界。）']
例句：
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1. The border piles were placed at the entrance of the village to mark the boundary.
在村庄入口处放置了边界桩来标记边界。
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2. The border piles were used to reinforce the wall during construction.
在建造过程中使用边界桩加固墙壁。
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3.The border piles were removed after the construction was completed.
施工完成后移除了边界桩。