national boundaries
definitions
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The physical, geographical, or political lines that separate one sovereign state or country from another.pt: Fronteiras nacionais
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The limits of a nation's legal authority, sovereignty, or territorial jurisdiction.pt: Limites de soberania
examples
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The dispute arose over the exact location of the national boundaries.
A disputa surgiu devido à localização exata das fronteiras nacionais.
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International laws are designed to respect national boundaries and sovereignty.
As leis internacionais são projetadas para respeitar as fronteiras nacionais e a soberania.