thrash out

Từ điển WordNet v3.1 - WordNet Dictionary

verb

discuss vehemently in order to reach a solution or an agreement (Freq. 1)
- The leaders of the various Middle Eastern countries are trying to hammer out a peace agreement
• Syn:
hammer out
• Hypernyms:
hash out, discuss, talk over
• Verb Frames:
- Somebody ----s something
- Something ----s something