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TOEFL IELTS BNC: 4553 COCA: 4415
frontier
frʌntɪəʳ -tɪəʳ ˈfrʌntɪə frʌnˈtɪr frɑnˈtɪr
Word forms: plural frontiers
1 N-COUNT 边界;边境 A frontier is a border between two countries. 边界;边境 [British]

  • It wasn't difficult then to cross the frontier.

    那时穿越边境并不困难。

SYN border, limit, edge, bound
in AM, usually use 美国英语通常用 border
2 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. 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)

  • ...a far-flung outpost on the frontier.

    远驻西部边疆的前哨

3 N-COUNT [usually plural, adjective NOUN] (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. (尤指知识的)前沿，尖端，新领域

  • ...pushing back the frontiers of science. [+ of]

    推进科学前沿

  • ...technological frontiers.

    技术尖端

Trends of frontier
View usage for:All yearsLast 10 yearsLast 50 yearsLast 100 yearsLast 300 years
TOEFL IELTS BNC: 4553 COCA: 4415
frontier

noun¹

 1 (BrE) border between countries兩國之間的界線ADJECTIVE | VERB + FRONTIER | FRONTIER + NOUN | PREPOSITION ADJECTIVE➤common共同國界◇Neither country would guarantee the integrity of their common frontier.兩國都對雙方間的共同國界存有爭議。➤eastern, northern, etc.東部、北部等邊界◇There were very few border controls on the south-western frontier.西南國界上沒幾個邊境檢查站。➤Franco-Spanish, French-Spanish, etc.法國－西班牙等邊界VERB + FRONTIER➤cross穿越邊界◇The army crossed the frontier in the middle of the night.午夜時份，軍隊越過了邊界。➤reach到達邊境▸➤control, defend, guard控制邊境；保衞邊境◇The rebels control the frontier and the surrounding area.叛軍控制了邊境及其周邊地區。FRONTIER + NOUN➤controls, post邊境檢查站／哨所▸➤guard邊防戰士▸➤zone邊境地帶PREPOSITION➤across the frontier穿過邊界◇The weapons were smuggled across the frontier.武器是偷運過邊境的。➤along the frontier沿着邊界◇an army grouping along the frontier沿邊境集結的軍隊➤at the frontier在邊界上◇There was an army checkpoint at the frontier.邊界上有一個軍隊檢查站。➤on the frontier在國界上◇people living on the German frontier居住在德國邊境地區的人➤over the frontier越過邊界◇They were forced to retreat back over the frontier.他們被迫退回到邊界線以內。➤frontier between⋯之間的邊界◇the frontier between India and Pakistan印巴邊界➤frontier with與⋯的接壤地區◇France's frontier with Germany法國與德國的接壤地區
frontier

noun²

 2the frontier the edge of land that is known已知土地的邊緣ADJECTIVE | VERB + FRONTIER | FRONTIER + NOUN ADJECTIVE➤wild荒野地帶◇America's wild frontier美國的荒野地帶➤western西部的邊疆地帶VERB + FRONTIER➤explore探查邊疆地帶➤tame（通過開墾等）控制邊疆地帶➤settle在邊疆地帶定居FRONTIER + NOUN➤province, settlement, town邊疆地區的省份／定居點／城鎮➤mentality, spirit邊疆心態／精神
frontier

noun³

 3border between what we know and do not know已知與未知之間的界限ADJECTIVE | VERB + FRONTIER ADJECTIVE➤final, last最終／最後未開拓的領域▸➤new新領域➤next下一個新領域➤technological技術前沿VERB + FRONTIER➤explore探索領域◇Space is the final frontier for us to explore.太空是我們探索的最後一個領域。➤advance, expand, extend, open, push back拓展／擴展／延伸／開闢／擴大領域◇The scientists' work will push back the frontiers of physics.科學家的工作將拓展物理學領域。
TOEFL IELTS BNC: 4553 COCA: 4415
frontier noun
⇨ border (a frontier settlement) ⇨ limit 2 (the frontiers of science)
TOEFL IELTS BNC: 4553 COCA: 4415
frontier
Borders between countries and regions: border, line, frontier...
Areas of countries: airspace, area, belt...
Areas of specific countries: ACT, AONB, Bantustan...
Relating to national and international borders: frontier, partition, clear...
Modern and fashionable and up-to-date: modern, contemporary, advanced...

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