ham·mer out
phrasal verbhammer out something
- to discuss a plan, an idea, etc. until everyone agrees or a decision is made
反复讨论出（一致意见）；充分研讨出（决定） - to hammer out a compromise
反复讨论达成妥协
- to hammer out a compromise
- to play a tune, especially on a piano, loudly and not very well
（在钢琴等上）敲打出