| 单词 | grief stem |
| 释义 | grief stemnoun : a tube or rod of square cross section fitted into a square hole in the rotary-drill table and forming the top section of the rotary-drill shaft in an oil well |
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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。