iron out
US /ˈaɪərn aʊt/
UK /ˈaɪərn aʊt/

1.
resolver, acertar
to resolve or settle difficulties or problems
:
•
We need to meet and iron out the details of the plan.
Precisamos nos encontrar e resolver os detalhes do plano.
•
They are trying to iron out the differences between the two proposals.
Eles estão tentando resolver as diferenças entre as duas propostas.