| 单词 | at grade |
| 释义 | Word Frequency at gradea. on the same level b. (of a river profile or land surface) at an equilibrium level and slope, because there is a balance between erosion and deposition |
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英语词典包含233703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。