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

• Nepal has frontiers with both India and china.
  尼泊尔的边界与印度、中国相接。
• There are no new frontiers within our borders.
  在我们的国界内已经没有前线了。
• The Analyses on IETF Research Frontiers and Related Suggestions to Our Country
  IETF研究前沿与发展动态分析及对我国的启示和建议
• 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。
• 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。
• 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。
• But when the federal government builds walls around industries, it also blocks the exploration of new frontiers.
  但是，当美国联邦政府在美国各行各业周围建立起围墙的时候，它也挡住了向新疆域的探索。
• 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。
• 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》）
• 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。