| 单词 | blue-sky research |
| 释义 | Definition of blue-sky research in English:blue-sky researchnoun
Origin1950s. Definition of blue-sky research in US English:blue-sky researchnoun
Origin1950s. |
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英语词典包含464360条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。