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frontier
美音音标: ['frʌntɪə(r)]
frontier 美音 真人发音
英音音标: ['frʌntɪə(r)]
frontier 英音 真人发音
英汉字典
英英字典
解释
国境;
边境;
尚待开发的领域;
同义
frontier
词性
n
解释
a wilderness at the edge of a settled area of a country
示例
the individualism of the frontier in Andrew Jackson's day
同义
frontier
词性
n
解释
an international boundary or the area (often fortified) immediately inside the boundary
示例
None
同义
frontier
词性
n
解释
an undeveloped field of study; a topic inviting research and development
示例
he worked at the frontier of brain science