| 单词 | an unknown quantity |
| 释义 | an unknown quantity a thing or person that you know very little about She had known Max for some years now, but he was still pretty much an unknown quantity. Easy Learning Idioms Dictionary. Copyright © HarperCollins Publishers |
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英语词典包含147115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。