knuckle发音和在线翻译,knuckle怎么读,knuckle中文意思、读音、用法、例句、含义...

knuckle是什么意思

详细释义

0 to start working or studying hard -- 開始努力工作；開始用功學習
- You're going to have to really knuckle down (to your work) if you want to pass your final exams. 如果你想通過期末考試，就必須用功學習。