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frontier 'frʌntjә

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释义

n. 边界, 边境
[法] 国境, 边境, 边界

英文释义

n. a wilderness at the edge of a settled area of a country
n. an international boundary or the area (often fortified) immediately inside the boundary
n. an undeveloped field of study; a topic inviting research and development

词形变化

复数: frontiers

BNC词频排名: 4,553 | 当代语料库词频排名: 4,415