frontiers

英 [ˈfrʌntɪəz]

美 [frənˈtɪrz]

n.  国界; 边界; 边境; (尤指19世纪美国西部的)开发地区边缘地带，边远地区; (学科或活动的)尖端，边缘
frontier的复数

Collins.2

柯林斯词典

• N-COUNT 边界;边境
  Afrontieris a border between two countries.
  1. It wasn't difficult then to cross the frontier.
     那时穿越边境并不困难。

in AM, usually use 美国英语通常用border


• N-COUNT 西部边疆,边远地区(指 20 世纪前美国西部欧洲移民尚未定居的部分)
  When you are talking about the western part of America before the twentieth century, you usefrontierto refer to the area beyond the part settled by Europeans.
  1. ...a far-flung outpost on the frontier.
     远驻西部边疆的前哨
• N-COUNT (尤指知识的)前沿，尖端，新领域
  Thefrontiersof something, especially knowledge, are the limits to which it extends.
  1. ...pushing back the frontiers of science.
     推进科学前沿
  2. ...technological frontiers.
     技术尖端

双语例句

• Naked aggression and an attempt to change frontiers by force could not go unchallenged.
  公然的侵略和企图用武力改变边界的行径是不能置之不理的。
• Research at the frontiers of life science cannot be done without the use of these techniques.
  没有这些技术，生命科学的尖端研究便无法进行。
• It is through education that we expand the frontiers of knowledge.
  通过教育，我们扩大了知识的阵地。
• Conclusion Basis of faunal distribution and ecological studies of mosquitoes in frontiers of Russia and Northeast China were provided.
  结论为东北中俄边境地区蚊虫的区系和生态研究提供了依据。
• Community leaders want to strengthen controls at external frontiers
  社区领导想要加强对小区外围的管理。
• Nepal has frontiers with both India and china.
  尼泊尔的边界与印度、中国相接。
• Their influence radiated far beyond their walls, and even beyond the frontiers of their territories.
  它们的影响大大地超越了城墙范围，甚至超越了国界。
• Young people in China and throughout the world will lead us to frontiers that we cannot imagine today.
  中国乃至全世界的年轻人将带领我们走向我们今天无法想像的科技前沿。
• There is no way to maintain the frontiers of freedom without cost and commitment and risk.
  没有代价、承诺和风险，就不可能维持自由的边界。
• For11 years, I was the host of the public television series Scientific American Frontiers.
  11年来，我一直是大众电视系列片‘美国科学前沿’的主持人。