【frontier】的解释和释义

8Ol中文字网

noun8Ol中文字网

一. an undeveloped field of study
a topic inviting research and development8Ol中文字网

e.g. he worked at the frontier of brain science8Ol中文字网

二. an international boundary or the area (often fortified) immediately inside the boundary8Ol中文字网

三. a wilderness at the edge of a settled area of a country8Ol中文字网

e.g. the individualism of the frontier in Andrew Jackson's day8Ol中文字网

一. 边界;边境
A frontier is a border between two countries.8Ol中文字网

e.g. It wasn't difficult then to cross the frontier.
那时穿越边境并不困难。8Ol中文字网

二. 西部边疆,边远地区(指 二零 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.8Ol中文字网

e.g. ...a far-flung outpost on the frontier.
远驻西部边疆的前哨8Ol中文字网

三. (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.8Ol中文字网

8Ol中文字网

e.g. ...pushing back the frontiers of science.
推进科学前沿
e.g. ...technological frontiers.
技术尖端8Ol中文字网