新东方-柯林斯雅思备考词典

frontier

英  [ˈfrʌntɪə]
    

[NOUN]

    NOUN. 名词
  • frontiers

    1[C 可数名词] (尤指知识的)前沿

    The frontiers of something, especially knowledge, are the limits to which it extends.

    双语例句

    例:

    pushing back the frontiers of science.

    推进科学前沿。

    2[C 可数名词] 国界

    A frontier is a border between two countries.

    双语例句

    例:

    It wasn't difficult then to cross the frontier.

    那时候穿越国界并不难。