| 单词 | keen as mustard |
| 释义 | keen as mustard [mainly British, old-fashioned] very eager or alert I have an adult pupil who scored very low in assessments but is keen as mustard. Easy Learning Idioms Dictionary. Copyright © HarperCollins Publishers |
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英语词典包含147115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。