knuckle down
phrasal verbwithknuckleverbuk/ˈnʌk.əl/us/ˈnʌk.əl/
informaltostartworkingorstudyinghard:
开始努力工作；开始用功学习You're going to have to reallyknuckledown (toyourwork) if youwanttopassyourfinalexams.如果你想通过期末考试，就必须用功学习。
Work, working and the workplace
- act assomething
- all work and no play (makes Jack a dull boy)idiom
- assignment
- bandh
- be at workidiom
- grind
- hoop
- hot-desking
- hotelling
- housekeeping
- in the line of dutyidiom
- induction
- industry
- moonlight
- slave
- slog
- slouch
- spadework
- subtask
- sweat