knuckle down

US 
UK 
  • na.开始认真工作;干劲十足地干
  • Web屈服;认输;将指节贴地
Simple Present:knuckles down  Present Participle:knuckling down  Past Tense:knuckled down  
na.
1.
开始认真工作;干劲十足地干
2.
(向...)投降 (to) (=knuckleunder)

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard