Word · Frequency #4553
frontiers
边境；国界；边疆
frontiers is the plural of frontier.
a line or area that separates two countries
- 1.
The part of a country which borders or faces another country or unsettled region.
国家与另一国或未开发地区接壤或相对的部分；边境,边疆。
- 2.
a wilderness at the edge of a settled area of a country
国家已开发区域边缘的荒野
- 3.
The most advanced or recent version of something; the leading edge.
某事物的最先进或最新版本；前沿。
- 4.
an international boundary or the area (often fortified) immediately inside the boundary
国际边界或边界内侧(通常设防)的区域
- 5.
an undeveloped field of study; a topic inviting research and development
尚未开发的研究领域；一个吸引研究和发展的主题
边远地区；未开发地区；前沿；尖端；新领域；国家与另一国或未开发地区接壤或相对的部分；边境,边疆。；国家已开发区域边缘的荒野；某事物的最先进或最新版本；前沿。
In use
The new smartphone is at the frontier of mobile technology.
Medical researchers are working at the frontiers of medical science.
Investors are looking for opportunities at the frontier of renewable energy.
the individualism of the frontier in Andrew Jackson's day
he worked at the frontier of brain science
Connections
Word family
- frontiers
- plural, third person singular
- frontiered
- past, past participle
- frontiering
- present participle
Learner notes
Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.