| 单词 | root sign |
| 释义 | root signnoun Mathematics Another term for radical sign.Remember that the first expression always has a plus (+) inside the root sign and the second always has a minus (-) inside its root-sign but the sign in-between depends on the second value. |
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英语词典包含243303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。