natural boundary

Any nonartificial thing (such as a river or ocean) that forms a boundary of a nation, a political subdivision, or a piece of property.

— Also termed natural object. [Cases: Boundaries 4. C.J.S. Boundaries §§ 5–6.]

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词条贡献者

双语律师Roger，毕业于一所培养最顶级翻译人才的语言学院，擅长翻译各类与商业秘密咨询与诉讼相关的法律文件。