| 单词 | frontier |
| 释义 | frontierfrontiersfrontierfrontier /ˈfrʌntɪə $ frʌnˈtɪr/ noun [countable]1especially British English the border of a countryfrontier between/witha town on the frontier between France and Spain法国和西班牙边境的一座小镇2the frontiers of knowledge/science etc the limits of what is known about something |
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