| 单词 | formation rule |
| 释义 | formation rulenoun : a principle in logic for establishing permissible combinations of signs (as for determining how to construct statements or formulas in a formalized language or calculus) —contrasted with transformation rule |
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英语词典包含469781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。