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

• 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。
• Cold seep and cold seep carbonates are the frontiers in the modern science.
  冷泉及冷泉碳酸盐岩是当今科学界研究的前沿之一。
• But we will push the frontiers.
  但我们将继续推进它的研究。
• 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。
• Already China is embroiled in skirmishes and politicking on new frontiers.
  中国已经在一些新领域卷入了小规模的冲突和政治活动。
• Nepal has frontiers with both India and china.
  尼泊尔的边界与印度、中国相接。
• 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。
• A Thousand Leagues she tramped on the errands of war,| frontiers and hills she crossed like a bird in flight.
  万里赴戎机，关山度若飞。（《木兰诗》）
• Researchers are pushing back the frontiers and opening doors to reveal why things happen and how things work.
  研究者们拓展了其研究领域，介绍并揭示了事物发生的原因和机理。
• Their research has pushed forward the frontiers of knowledge.
  他们的研究又把知识的前沿推进了。