frontiers是什么意思？

frontiers

• n. 边界( frontier的名词复数 )，边境，开发地区的边缘，尚待开发的领域；

例句

• 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.
• Belabored from all sides, the Germans now made a general withdrawal toward their own frontiers. 德军在四面八方的痛击下,实行总撤退, 直至德国本土边界.
• 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.
• Human acts have repercussions far beyond the frontiers of the human world. 人类行为所产生的影响远远超出人类世界的范围.
• And the same evening German motorized elements reached the Serbian frontiers. 同日晚间,德国的摩托化部队进抵塞尔维亚边境.
• Sweden has frontiers with Norway and Finland. 瑞典同挪威.芬兰相邻.
• 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。
• She a biochemist who works on the frontiers of biology. 她是从事生物学前沿研究的生化学家.
• 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。
• 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。

英语六级真题

As Santiago de la Mora, head of Google Books for Europe, puts it: "By making it possible to search the millions of books that exist today, we hope to expand the frontiers of human knowledge.
出自-2011年12月阅读原文

柯林斯高阶英汉双解学习词典释义

• N-COUNT
  边界;边境
  A frontier is a border between two countries.
  例句
  It wasn't difficult then to cross the frontier. 那时穿越边境并不困难。
• 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 use frontier to refer to the area beyond the part settled by Europeans.
  例句
  ...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
  The frontiers of something, especially knowledge, are the limits to which it extends.
  例句
  ...pushing back the frontiers of science. 推进科学前沿 ...technological frontiers. 技术尖端