| 词汇 | primary source |
| 释义 | primary source 主要翻译 primary source n (original or first-hand material)第一手来源，一次文献The hand-written letters from the Spanish Civil War provided important primary sources for our study. |
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英汉词典包含2359566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。