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

• 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。
• They are highly interested in the frontiers of science.
  他们对于科学的新领域有浓厚的兴趣。
• America will lead the world toward shared peace and prosperity, and the far frontiers of science and technology.
  美国要带领世界缔造共同的和平和繁荣，攀登科技的高峰。
• But I had given no pledges about frontiers.
  但是我对边界问题，没有许下任何诺言。
• With open frontiers and lax visa controls, criminals could cross into the country without restraint.
  由于边境开放和签证管理松懈，罪犯可以毫无限制地进入这个国家。
• On the frontiers they met fierce resistance and defeat that spelled eventual disaster.
  在边界地区他受到了猛烈的抵抗，失败了，这一失败引起了灾难性后果。
• 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。
• 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。
• In the 20th century political frontiers became a central influence on economic life.
  20世纪，政治边界对经济生活产生了重要影响。
• You are exploring the frontiers in science.
  你在探究科学的新领域。