| 单词 | known quantity |
| 释义 | Definition of known quantity in English:known quantitynoun
OriginEarly 18th century. Definition of known quantity in US English:known quantitynoun
OriginEarly 18th century. |
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英汉双解词典包含464360条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。