frontier的翻译是什么

1. 边界，边境，边缘，边疆，边地
2. 国界
3. 尚待开发的领域，新领域，未完全开拓的领域
4. 边远地区，边界地区
5. 新开辟地
6. 边疆城市
7. 阵地
8. 前沿，尖端

1. 边疆的，边地的
2. 新垦地的
3. 开拓的，探索的

1. a wilderness at the edge of a settled area of a country;

   "the individualism of the frontier in Andrew Jackson's day"
   

2. an international boundary or the area (often fortified) immediately inside the boundary
3. an undeveloped field of study; a topic inviting research and development;

   "he worked at the frontier of brain science"
   

1.边界;边境
Afrontier is a border between two countries.

e.g. It wasn't difficult then to cross thefrontier.
那时穿越边境并不困难。

2.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 usefrontier to refer to the area beyond the part settled by Europeans.

e.g. ...a far-flung outpost on thefrontier.
远驻西部边疆的前哨

3.(尤指知识的)前沿，尖端，新领域
Thefrontiers of something, especially knowledge, are the limits to which it extends.

e.g. ...pushing back the frontiers of science.
推进科学前沿
e.g. ...technological frontiers.
技术尖端

• close a frontier关闭边境

• the frontier between在…之间的界线
• have frontiers with与…接壤

• Establishing an agreed frontier between Poland and Russia.

  出自：G. F. Kennan

• The frontiers of treason are rarely so clearly defined.

  出自：fig.

• ☆ 1400年左右进入英语，直接源自古法语的frontier，意为边境，国境。