Hi @almeidapaulopt,
I totally get your point, I faced the same issue.
To get around it, we worked together with another community member and were able to translate almost all sentences in French.
But if you are the only one working on Portuguese that may be an issue.
Try to contact the Frappe Team directly, they might be able to help you: How to get more Karma? - #4 by umair
Anyway, the challenge will still be to find someone to validate your translations, else they won’t go be merged in Master.
Good luck!