| 单词 | knuckle down |
| 释义 | knuckle down phrasal verb See full dictionary entry for knuckle If someone knuckles down, they begin to work or study very hard, especially after a period when they have done very little work. [informal] The only thing to do was knuckle down and get on with some serious hard work. [VERB PARTICLE] He managed to knuckle down to his lessons long enough to pass his examination. [VERB PARTICLE + to] |
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