名词
中文翻译：干石
同义词：
['dry stone', 'dry limestone']
例句：
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1.The builders used drystone to build the walls of the castle.
建造者使用干石来建造城堡的墙壁。
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2.The path was made of drystone, which was easy to walk on.
这条路径是用干石铺成的，走在上面很舒适。
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3.The construction project required a lot of drystone for the foundation.
这个建设项目需要大量的干石作为地基。