frontier
US /frʌnˈtɪr/
UK /ˈfrʌn.tɪər/
名詞
1.
邊境, 國界
a line or border separating two countries
範例:
•
The soldiers guarded the frontier between the two nations.
士兵們守衛著兩國之間的邊境。
•
They crossed the frontier illegally.
他們非法越過邊境。
2.
邊疆, 未開發地區
the extreme limit of settled land beyond which lies wilderness, especially in reference to the western US before the 20th century
範例:
•
Pioneers ventured into the vast American frontier.
拓荒者們冒險進入廣闊的美國邊疆。
•
Life on the frontier was harsh and challenging.
邊疆的生活艱苦而充滿挑戰。
3.
前沿, 尖端
the extreme limit of understanding or achievement in an area of knowledge or endeavor
範例:
•
Space exploration represents the ultimate frontier of human endeavor.
太空探索代表著人類努力的終極前沿。
•
Scientists are pushing the frontiers of medical knowledge.
科學家們正在拓展醫學知識的前沿。