| 短语 | knuckle down |
| 释义 | knuckle down informalto suddenly start working or studying hard〔突然〕开始努力工作（学习）;SYNget down to•If he doesn't knuckle down soon, he'll never get through those exams.他如果不快点用功，肯定通不过那些考试。[+ to ]•He is clearly ready to knuckle down to the task.显然他已准备开始认真着手这项任务。 knuckle down 1. apply oneself seriously to a task 认真工作。 2. （亦作knuckle under）give in; submit 让步; 屈服。 |
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