| 单词 | the frontiers of knowledge/physics etc |
| 释义 | the frontiers of knowledge/physics etc the frontiers of knowledge/physics etc → the frontiers of knowledge/physics etc at frontier(2) the limits of what is known about somethingthe frontiers of knowledge/physics etc |
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初中学习网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。