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frontier

B2 noun

frontier /fɹʌnˈtɪɹ/ nghĩa là biên giới

Các nghĩa

  1. biên giới

    The part of a country which borders or faces another country or unsettled region.

    the frontier of civilization

  2. tiên phong

    The most advanced or recent version of something; the leading edge.

    Near-synonyms: vanguard, state of the art

    the frontier of solid state electronics

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