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A column of soft rock or earth formed by erosion or other natural agency, typically having a cap of harder rock.
Late 18th century; earliest use found in D. Walker (fl. 1795).
礼仪网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。