| 单词 | Verb Endings for knuckle down |
| 释义 | Verb Endings for knuckle down Verb Endings for knuckle down present simple:I knuckle downyou knuckle downhe/she/it knuckles downwe knuckle downthey knuckle downpresent participle: knuckling downpast simple: knuckled downpast participle: knuckled down |
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英语词典包含67674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。